I guess this is also quite a good marketing plan. Now with over 250,000 tablets in the market, it ruins the ipad market + creates a nice pool of app developers.
The ipad sold (as near as I can find) nearly 14.8M first gen and another 10M+ second gen [1]. Thus the ipad market is roughly 100x bigger, which that multiple growing every day. I can't see why you'd possibly choose to develop an app for a market that starts off 100x as small, doesn't have neighboring markets like iphones/ipod touches which use the same api and tooling, and for which the main developer has just bailed.