While almost certainly fake, whoever did it seems to have done some homework before putting it together. For example, U2 are likely to head a few festivals this year after 2010's injury-related cancellations, Gary Numan was supposed to be at Coachella last year but had to cancel because of air travel issues, Daft Punk is riding high on the
Tron soundtrack, and REM and the Beastie Boys both have new albums coming out this spring. On the other hand Orbital is unlikely since they played last year, Lemon Jelly is on hiatus and has never played a live show outside the UK, and
It's Always Sunny in Philadelphia live seems like a pretty far-fetched choice.
In any event, if it proves anywhere near accurate, I for one may have no choice but to again brave the desert.
(FWIW,
here is a thread on the Coachella boards tracking line-up rumors and confirmations.)