yeah i love the notification on WP , all I need ,
tells me if i have a txt , e-mails , calander , missed calls on on my home screen.. easy breeze dont even need to open a *notification center* to lose an other 2min scrolling true the same thing a live tile tells you.
Well those Live Tiles are basically Badges on a big square, which Android does - at least any skinned device (Sense 3+, TouchWiz 4+, LG UI, Motorola UI, Sony's UI all do this). That covers pretty much all major manufacturers here.
Lock Screen Notifications are done by literally all of those, as well. ICS allows you to pull down the Notification bar on a Locked screen so in addition to getting a raw count you also get context, easily, without unlocking your phone. It's much faster than opening the phone and going into an app to see exactly what that notification is about. Efficiency is key with mobile devices.
It's not just about seeing stuff, it's about efficient workflow. iOS does this as well - even better in some ways - with their lock screen notifications.
If you get a Voicemail from a Telemarketer you have to unlock your phone and go to the Phone app to see that it's a bum phone number. All I have to do is pull down my notification bar from the lock screen and swipe it away. Additionally, I can swipe from the lock screen icon to open up that app directly to that element. You cannot do this from the WP7.5 lock screen.
Third party apps cannot post Lock Screen Notifications on WP7.5, so being able to pull down the Notification bar from the Lock Screen is a huge advantage. Additionally, WP7.5 has no cache, so for Apps without a Live Tile (or with a Volatile Live Tile) you either have to see the notification or there's a chance you won't know any new data came in until you actually open the application.
Facebook App Notifications on WP7 were consistently about 10 minutes behind Android and iOS for me. I tested this on YouTube on another forum, multiple times. The IM client notifies often minutes later than the Official App on iOS and 3rd party apps on Android (Beejive Pro and Trillian for Android), which I tested on YouTube on another forum, multiple times. Twitter on iOS and Android now has instant push notifications. Not the case on WP7.5 - this was a huge boon for people tweeting Results and Live Blogging through Twitter during the Olympics.
I used to carry 3 dispirate devices to get around these issues (iTouch tethered to my HD7 for iOS-exclusive apps/games, Vibrant with Active SIM/Data Plan for everything else smartphone-related, and the HD7 for calls/music streaming).
I have not seen one single app where Notification speed on WP7 was on par with iOS and Android. I don't think it's a platform issue, I think it's a back-end infrastructure issue. However, their method of typing in Services to Live.com and fetching data does not seem to be the most efficient as far as notification speed is concerned.
It's totally possible Live Tiles are perfect for millions of people out there, but I prefer to not have to check my phone to see if something new came in. I want it to beep or Vibrate and let me know. In addition to being more efficient (since I can get to any of it without unlocking the phone, anyways), it makes sense and the Live Tiles don't provide anything I cannot get via a Badge or Widget, anyways.
It also lets my phone last longer since there is less on-screen time from constantly checking to see if anything new is in.
If you want anything other than a few stock apps that display raw numbers on the lock screen, you have to unlock a Windows phone and getting to those tiles often requires scrolling down. Over a day you can log an extra 30 minutes of on-screen time just from checking for notifications which can add up to be a factorable chunk of your battery capacity.