If people main complain about competing tablets is just apps then wait a while. The iPad is so well developped because its been around for so long and attached itself to the iPhone appstore. .
People keep saying things like this, but there is little evidence to support it. Lets look at the facts:
On day 1 of the iPad there were over a hundred optimized Apps for it. A year later there are more than twenty thousand.
"Android Tablets" have been around, arguably, for six months. Looked in the Android Market for Apps recently? Slim pickings, indeed. But the problems go much deeper than simple number of Apps. Google played that game with Apps for Android phones - with the result than ~ 90% of the "Apps" are complete garbage: wallpapers, ripoff games, etc.
The problem is that Google is ultimately all about selling
advertising. So their entire emphasis is on ad-supported Apps. Which is fine for the makers of Angry Birds, who can count of a few million eyeballs to pay the bills. But its not so good for makers of smaller "niche" apps. The sort of people who need five or ten thousand people to pay five bucks each to pay for six months of their work. Google has NEVER demonstrated the ability to sell this sort of product.
Then you have the problems of "openness" - which is sort of shorthand for "makes it easy to install pirated copies." People complain about Apple's "control" - but it does at least ensure developers get paid for every copy of their Apps that get installed. And then you've got the bugbear of fragmentation: Too many flavors of Android, running on too many different sizes and formats of Tablets.
So, bottom line: The number of Android Tablet Apps will certainly increase. But it is NEVER going to come close to matching the QUALITY of iPad Apps. And without
quality Apps, your $500 tablet simply becomes an (expensive) portable e-mail reader, web-browser, and video player.