Having the same problem! My old Dell inspiron laptop died a few months ago and bought a Asus Transformer as an interim while I looked for a decent linux compatible alternative. I discounted the HP 455 because of the driver issues, the dell 3000 looks too underpowered, and I want a slightly better screen. The m6800 is way over the top for me though... I'm sort of stuck. I don't want to buy a windows laptop and pay for something I won't be using (windows).
Never seen the entroware laptops so thanks for pointing them out - I'll see what people are saying about them... potentially the apollo looks like a good option!!