x86 based tablets are under mass production.

Acer to launch Android 3.0 tablet on Intel Oak Trail

 

The tablets are under mass production.

There are also news about MSI using AMD chip for the tablets.

We probably will see intensive price war at the end of this year. Some of ARM chip design houses will be in trouble to deal with the price war because they don't have the manufacturing advantage.

The tablets with Intel/AMD chip will have the option of running Android, windows7/windows8 and Meego(probably no one care about Meego).