Hmm...the port is for Maemo Linux I guess.
The Nokia N97 doesn't run Maemo, or does it - I wonder how it works on it.
Your 5800 doesn't have Maemo either. But its CPU is as good as the N97's so if it somehow works "good" on the N97 it should work good on your 5800, too (the missing keyboard might be a problem).
Should you try it out I'd suggest version 1rc2-8
as this one utilizes Cyclone. Since 1rc2-9 the developer switched back to FAME/C for better compatibility(!?):