eehmmm - which limitations?
Anyway, I go along with you, if you meant an updated (missing) howto for a complete cross compiling evironment. There are many howtos out there, non of all the stuff worked for me - one of the main problem is the missing documentation of hardware and software. Sometimes it's more as hard to find just a regular wiki or howto. And it really hurts, that some software needs to be recompiled when updating olegs fw.
Hence, what I would suggest is a documentation project, it would revalue Olegs efforts to build a better fw for our beloved asus. Well, if such project would revive, I would like to play a part of it - at least my two cents.
I'm absolutely convinced, that a pretty good documentation would allow to start further development, as well as supporting Olegs efforts to change to kernel 2.6 - which is a pretty hard job.