On paper, the Xoom and the Playbook are slightly better than the ipad2. In terms of OS, Android, QNX and WebOS are better than iOS in my opinion.
So I think trying to run WebOS on 1/4 the ram that HP thinks it needs in the TouchPad will not be a good combination, you need the industrial design of the iPad, with the hardware and software from HP.
It's possible, and if true would be a DISASTER. Already on my iPad you can appreciate a lag when "multitasking," that is, it takes an appreciable moment after you open a "running" app until you can actually interact with it. Almost never notice this on the iPhone 4. I sure hope you're wrong.
My reasoning was given the very minor things that Steve likes to trumpet as giant improvements I figured a 50% gain in such an important spec for performance would be up on that keynote screen with a side by side demonstration of some kind. But after Patbon commented I took a look at coverage of previous iPhone announcements where there was a ram change (3GS and iPhone4) and the press didn't mention ram in any of their initial coverage. I'll wait for the teardown of course, and still think that the iPad would be ram light for WebOS or Honeycomb.
I hope to be pleasantly surprised.
Yeah. The interesting thing is that if Apple does stick with 512MB in their tablet, they'll still be behind the curve. Engadget had a brilliant table recently that listed all the tablets out. I think the iPad was the only tablet out (or soon coming out) that didn't have at least 1GB of RAM.
I'll have to see if I can dig that up again.
EDIT: Here it is!
Even more comprehensive:
Doing some quick reading I suspect that Wh is a better measure of how good a battery is than mAh but because I'm lazy I did a single rough conversion to mAh for the iPad rather than try and work out the Wh for each of the other tablets.
Remember iOS doesn't support apps that could suddenly demand RAM when updating an RSS feed or other task. ie. widgets. So the platform needn't reserve RAM for said widgets when they fire off.
In other words it may not be an Apple-to-Apple comparison (Pun intended), since each mobile platform requires a different base-line amount of RAM to run.
In my opinion, a more important comparison is how quickly can tasks be accomplished; such as how quickly do apps launch on different platforms (including iPad 1 with it's older hw) and how quickly can the platform handle data processing, for example, loading a large webpage, opening a large video, launching the address book with 500+ contacts in it, launching the gallery app with 1,000+ images in it, etc. These are more aspects in regards to your actual use of the device, rather than comparing numbers in a spreadsheet.
Just my 2 cents.