You can't possibly need a SCORE. You need some website to work. Unless you complain about something not working your complaint does not make sense. Lets see an example of what is not working (I tested with desktop IE9)
MathML - I guess you won't be able to see math formulas in HTML markup. Need that often?
No subtitles support in Video. Well that can be useful for some people.
No Ogg support? WTF why is this even in the tests?
No WebM support... Chrome is supposed to remove the H.264 support... lets see if they dare especially since safari does not support anything but H.264 (just like IE)
No support for Ogg and WebM in audio... we covered that already but IE loses points twice for the same thing
No support for reverse element on ordered list. Important? I doubt it.
Some stupid semantic elements with no real usage like "time". Do you care?
Forms... now this is big (and IE loses a lot of points here). There are no inputs for phone number, email, datetime etc. IE10 is going to have those on the desktop so I have to assume it will have it on the phone. This is really important and much more important on the phone than on the desktop
Many points lost for lack of drag & drop support... on a Phone. Not serious.
History and navigation - that might be useful but no one can really use it yet. This is supposed to replace the # after the URLs on many websites like twitter and facebook and provide the devs with the option to use real URLs that can change. I would consider this important if sites were actually using it but as of now they can't afford to use it. IE10 will support this.
Microdata - useless
I am not sure what this Web Application section is so I won't comment
I am not sure of the impact of the iFrame security so I will not comment either.
WebGL as a hardcore gamer I think the success of this technology can damage serious gaming and produce more tower defense and angry birds games. Maybe you care about this "HTML5 gaming" oxymoron but I don't. Also I doubt that mobile devices will have the power to run WebGL games that run slow on the desktop. Also they are ugly.
Communication... Do you know that the web sockets implementation in the android browser is now broken because the standard changed and they had implemented the old version? Anyway this is not in widespread usage yet and is coming in IE10 in much more stable (as in "unlikely to change") form. Desktop Chrome changed the implementation (because the standard changed) and broke existing apps. Would you like this to happen with IE?
File API - irrelevant since WP7 does not have user accessible file system. They may implement some access to the gallery though.
Web Workers - pretty much everything I said for web sockets applies here (including that they are coming in IE10). However Web Workers have a small niche useage compared to Web Workers.
No access to the camera... hmmm. May be useful but I have yet to see site that uses this.
Not sure what Web Notifications is
So really the only thing I care about as of today - Forms. Now if more sites start using Web Sockets and Web Workers and they stop working on IE I will care about these too but this is not currently the case.
And what exactly is your problem?
First Eirenarch, I invite you to re-read post #6. Specifically the first 2 paragraphs.
This reminds me of the loyal blackberry community that completely downplayed as to how much people would want large touch screen, and easy to use operating system when the first iPhone came out, and all the way until iPhone 4 and Android completely swallowed the market they once had.
The argument here isn't as to which of the features are 100% mandatory to have, but about who has MOST tools in order to provide developers what they need in order to make the next hits like Glympse, Angry Birds, Shazam, and so on and so forth. Just because items you listed aren't important to you, doesn't mean someone isn't going to figure out how to use them. They are on the list for a reason, and believe me, it's not some kind of conspiracy to promote Chrome and sink Internet Explorer.
It's easy to say who cares about web sockets on mobile device? A dynamic content exchange developer might, easily. Who says that drag and drop is irrelevant because it's MOBILE. Perhaps Android 5.0 will support desktop file system, and their browser is already setup to perform tasks most users would love to have.
When Palm's WebOS API refused to give the developers ability to record audio, and community shrugged it off, the end result was - NO Shazam for the platform.
And here is another thought, the strength or Windows 8, as advertised by Microsoft is the ecosystem it will live in. The equilibrium so to speak where the mobile, desktop, gaming, and web content lives in the bubble and can easily interact with each other. As well as developers having to easily port the features from one medium to another. Do you see how lacking features may hinder the process? Like the features you shrug off because "who cares about them on mobile!?"
I also would like to remind you that the desktop version of IE9 scores just as poorly as Mobile version currently. And while you may say that some of these features don't apply to mobile, they certainly apply to desktop version of IE9.
The bottom line, as it stands, IE10 Beta desktop version scores worse than currently deployed mobile version of Chrome and Safari. So when a developer looks at it and creates a new global hit and then puts a little icon saying "Requires Google Chrome - Download Here", where do you think customers are going to go? As it stands, and quite frankly, it's always been, designers and developers (and you can count me as one), hear "Internet Explorer" and immediately get a sour taste in their mouth.
If MS is serious about this competition, they (and we) can't shrug off any features competition has, especially when it comes to being a pioneer in writing & using new standards for the web. Otherwise, what will IE have that Chrome wouldn't?
And just as a side note, I've been doing some web animations using HTML5 and for the most part compatibility has been a nightmare. All browsers have issues where certain things don't show up, or snap into place wrong, or place randomly where not supposed to be. So in the end I end up re-making same thing multiple times. However, I do get best results on Chrome so far. (All that makes me very sad Flash is going away, actually.)
P.S. By the way, I mention Chrome a lot but I actually primarily use Firefox. Just a habit I suppose from the earlier days. So don't take it as a campaign to promote Chrome, or worse yet, Google as a whole.
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