The Android Market is quickly catching up with the iOS App store in total number of apps:

http://www.gsmarena.com/android_mark...-news-2430.php

In 6 months, the Android app count has exploded by 150K apps! Although this can't continue forever, it looks as though Android will catch up with iOS later this year.

I expect backwards/forwards compatibility and the aggressive Dalvik strategy is paying off. Many of these apps will be supported for years to come, and many will spill over onto the tablet without requiring a second specialized app.

Of course quality/quantity is another debate altogether.