Holy... so you've got latest (experimental even) libc6/libglib et al? Which kernel are you using? I've been trying (I know, butcher approach) to substitute those in Fremantle, but 'FATAL: kernel too old' happens most of the time. Considering ubuntu got all (not 100% sure but it seems so) packages also for armel this would mean latest libs out of the box. Fast enough for regular use sounds very optimistic. Fingers crossed