@ michaaa62, do you have personal experience with the Wetab and siduction?
The Zenbook looks good but it's a little to much money.
Only from a Live-USB-stick with the develoment gnome3 release, which i like for partitioning an administrative stuff, like backups with plain dd to SD-card.
Gnome3,as much as i like it and use it on my notebook and desktop computer is not that great a choice for this tablet, too small vertical screen estate, with panel and dock taking some space and are still not movable. Also the on-screen keyboard is limited without all those linux specific helpers like <tab> and those missing arrow keys.
On the bright side all the devices are fully supported out of the box, though i never tried the 3G in siduction.
But it works in some 11.04 Kubuntu derivate called Yawos, which is a community driven OS for the Wetab.
The drawback could be its weight, almost 1kg, and the fan that is coming up from time to time. Also being Atom-architecture the battery lasts between 4 to 5 hours.