I'm reviving this subject, as I think it didn't get the proper attention:
They don't advertise (so the word is traveling but slower), build by hand (so there is a few lucky owners and a long waiting list) what seems to be the best multi effect/"amp simulator"/guitar computer ever.
The more I read about it, the more I'm amazed. Seems like a breakthrough to me. I'm even more impressed with the creator and his vision, because technology wise it was really just a question of time.
It's started as a one man idea, that became true. Cliff Chase started with some reverb simulation software, moved to amp simulation and ended up with the axe-fx. he didn't care about costs, marketing and other consideration companies had. so he put it a 500mhz dual core processor, the best a/d converters, LCD screen and a software he wrote for 3-4 years modeling different amps pre-amps, power amps, sag effects, dumping, mic's, cabinets, modulation, od pedals.
I only heard recordings and read about it, but there is quite a unison opinion - this is the ultimate modeler right now. nothing even comes close (makes sense if you think it's processor is 10 times faster than the best POD).
What can it do? full routing, 2 amps at the same time, pristine effects and modulations sounds, provide FEEL and DYNAMICS of a tube amp (partial list). The price is quite high -1750$, is high. But sounds it worth it, if what is written is true.
I can't give links to all the sources, but you can find the manual, recordings, user forums in the official site, youtube, etc.
Very Interesting to test it, very interesting to see what will the other companies do, a great time in history to play a guitar!
http://www.fractalaudio.com/
http://www.setbb.com/axefx/index.php
http://www.musicgearsource.com/fractal.html
http://www.youtube.com/results?search_query=axe-fx&search=
http://www.g66.eu/
http://www.axe-fx.com/