If you're going to propose that Moblin is somehow better than Android for non-phone devices, it would be nice to have some backup information to prove your point.
The fact of the matter is that Linux is not designed to be an embedded OS, and the efforts that Moblin and Linux are making are significant but not wholly complete. When, as you say, the OS boots faster, is transparent, and exists invisibly to users (though clearly to developers), then we will have a true "mobile Linux" distribution.
Acer seems to be tempting fate here and begging Microsoft to raise their licensing costs. If they pass their costs onto consumers, will their cheap hardware keep prices low enough to attract customers, even with the higher-priced desktop OS? I don't know, but it seems very dangerous for them to be making such claims at this point.