I'll collect here my configuration and my tips. (plase be patient I have really little spare time)
system: SHR-U shr-image-glibc-ipk--20090709
kernel: 2.6.28-oe1+gitr34240a1c06ae36180dee695aa25bbae869b2aa26-r3-om-gta02.bin (it'a a TRUE .28-rc4) (with modules, i haven't figured out how to extract the tar on my fr, i extract it on the sd then cp on /lib/ )
wifi: works reliably with this kernel plus NWA 
gprs: never tried
gps: works like a charm
calls: buzz for the other
usb: get the connection reliably
bluetooth: can associate but not always send data... don't know why, i'll investigate.
software: minimo, tangogps, yaouh, orrery, mofi, leafpad (terminal) are the most used. shr-settings is _very_ useful, that' why i abandoned debian (even if debian has tons of software...)
what i miss: a finger friendly keyboard and file manager. (ps: I cannot download anymore bigG maps iwth the "repos" linked on wiki... do you know why?)
NOW: Getting buzz fixed, then verify if #1024 bug affected, then update/upgrade shr and latest kernel (seems has a reliable wifi).
myscripts: coming... (wait)