The Tab is no worse than the iPad. They are both overgrown versions of their respective phones.
The 'next' (as you put it) version of Android isn't the answer... the current version is. Android as an ecosystem already offers more features and more devices than iOS. That is what has allowed Android's growth to explode in the past year.
As an side (in response to an earlier post) few people I know hate Apple. Its Apple's fanboys and acolytes (and the accompanying detachment from objective/rational thought) that they actually dislike. Criticizing Uncle Steve just happens to be the easiest way to annoy them back.
There are a few reasons why android is growing rapidly:
1. os is free
2. it is better than window 6.0 or better
3. many manufactures hop on the bandwagon
4. there are over 100 android smartphones out there
5. These manufactures have a great outlet of channels of retails
6. Some telcos don't have iPhone as a choice
Last year is the year or the rise of androids. This year, iOS will strike back. However, it is going to take a few measures for apple to take back its lead.
1. all telcos need to carry the iPhone
2. need more factories to produce the iPhone
I read foxconn has opened up two more factories for such that. verizon will start soon as you know. I think iPhone 5 will be on all telcos in Us. So, I think by 2013, apple iPhone will be number world wide.