Neofonie-owned WeTab GmbH has shipped what appears to be the first MeeGo-based tablet, the 11.6-inch, Intel Atom N450-based WeTab, which is also said to be compatible with Android. Meanwhile, a super-light NFS N-Pad tablet prototype has popped up running Android on an Intel Atom N6xx ("Moorestown") processor.
Not much bigger than a netbook, Sam, so I can't really see an advantage.