I actually think that post-ICS and especially with Jelly Bean that Android is a superior tablet OS to iOS, at least for me. There's basically no feature on iOS that I miss when I'm on Android, but a few (eg. custom keyboards, the overall intent system, etc) that I miss when I'm on iOS. iOS still kills Android for app availability though (especially when it comes to "tablet optimized" apps) and between that and iOS ec…
This is a google device, not a run-of-the-mill Android device (most of which are not on ICS much less JB). This point is very important - it makes the device more like an iOS one - more likely for updates, more fine touches as Google's cred rests on it. If we see other tablets of similar calibre to the nexus7, then yes - you can say "Android" compares/best iOS. But for right now, it's nexus7 vs. iPad or Kindle Fire.
Not really. The ASUS line of transformers have been getting updates very quickly and they're slated to get JB soon. The tablet situation has little to do with the phone situation. Most of the delays and horrid policies come straight from the carriers, not the OEMs. I expect the tablet market to remain competitive and upgrade quickly and fully expect the horrible phone market to be as shitty as ever, if not worse. Google needs to push the Nexus phone harder and make its motorola offerings non-Blur.