Probably waiting on official driver support and certification. It may currently work with some hardware and software, but not others.
Please take you time, test it, and get it working right Apple before it is publicly released.
I believe that AdMob would do better being owned by Apple than Google, but I doubt that the FTC will get involved in this, but who knows?
If people are afraid of Google taking over everything on the Internet, maybe they should used BING, Yahoo, Ask.com, or some other search engine, and not support Google with their patronage or ad dollars.
Yes it does sound like they are setting up a "cloud" based service for some iWork apps. I hope they continue to make the standalaone iWork software as well, for those who don't want to use "cloud computing" apps (bandwidth, need to have Internet connection, etc.)
The device may need a game changing name to separate it from other tablets that are soon to appear. Since someone owns, and has heavily protected, the ISLATE name since 2006 with the various worldwide trademark offices and domain registries, it could likely be Apple.