I have purchased two of them (the second one is being shipped to me as
I write this). The one that I have with me was formatted on the OGO and I was
able to get 999K out of it. Other than the missing 25K, there hasn't been a
single bit of trouble with the card. One thing you should know though:
apparently during the refurbishing process, it looks like the card gets
mislabeled, and the side reading "insert this side down" should actually be
inserted with that side UP. My card was mislabakled this way, as was someone
else on the mailing list who ordered from them. At the worst case, if the card
doesn't go all the way in when you insert it, then you put it in wrong. and
should try again, this time flipping the card upside down.
As for the 2MB cards, the salesperson at Direct Mobile told me flat out
that they would not run properly on the OGO 100, so I never tried it.
Hope this helps...