I use a MagicRAM 10 Mb card. It has a large power drain during backups, but
with batteries above 50% before the backup, I have plenty of juice to do
backups. It does require downloading the driver to the OGO, but both hard
and soft resets leave the driver in place on my OGO 120. However, I don't
leave it in all the time, because I notice a large energy drain during data
input, etc. Therefore, Pretec appears to be better for daily use.
Chris
Christopher Paradies, Ph.D.
internet: paradies@epfl.ch
member: TMS, Sigma Xi
address: EPFL, LMPH, DMX-G 333, CH-1015 Lausanne, Switzerland