I can't release all of the specs/functionality yet but I can say a few things...
1) We have considered Wi-Fi. It won't be a feature in v1.0 but I'm really hoping it makes it into a future version.
2) The one big, big, big difference between us and any other software (mymobiler, soti, etc.) is the patented REDFLY screen resolution change. If you've used the REDFLY hardware (as most of the people reading this forum have) then you know what I mean. We also install a software driver on the phone itself. That driver enables two video drivers to run side by side (ours and the built-in driver). We can switch on-the-fly (without the need for a soft reset) between the phone's native screen resolution and any of the 4 following - 800x480, 800x600, 1024x600 or 1024x768. With other software solutions that run on a Windows box, you can use your PC's mouse, keyboard and see your phone's screen - but only at native res (320x320 like in that shot of the Treo Pro for instance). In the photo above, compare the Treo Pro's screen showing the spreadsheet at 320x320 and the window on the laptop's desktop showing the same spreadsheet at 800x600. You get many more cells on the screen at the same time. A lot of netbooks and laptops are giving you a 1024x600 screen anyway, so if you're using REDFLY Mobile Viewer (RMV) set to 1024x600 you can essentially work full screen on your laptop - but on your phone. We're not just taking the phone's screen and blowing it up (everything gets proportionately bigger) - we're giving you more screen "real estate" for spreadsheets, web browsing, email, or any app on your phone. No one else can offer that feature.
3) No public beta as of now. Not sure if there will be. We are testing with various partners etc.
4) Retail price should be around $40 when it ships. [update]: I forgot to mention, existing REDFLY hardware customers will get a great discount on the RMV software (like under $20).
I'm very curious to see if you guys think this is valuable or not both now without using it and again after you install the 30-day trial.
The idea behind the software is to give people more choice in how they use their phones. If you want instant boot, long battery life, high security, no data loss worry and no PC imaging/managing hassles, then the REDFLY Mobile Companion hardware is for you. If you already have a netbook/laptop/desktop, don't mind waiting 5 min for it to boot into Windows, don't mind doing all of your own maintenance/virus/malware protection etc., then the RMV software still gives you a great way to text message, use your phone's email, browser etc. with a lot more screen real estate.