I ordered the Sandisk 2GB Micro Card online for 21 with shipping and it is all the memory I will need. I already loaded my MP3s, photos I take around, some audio books, etc. and I still have 1.2GB free.

However, I think it would be nifty if they would built multiple Micro SD Card slots into the devices. It would be nice to have 4 slots so at this point you could add 16GB of memory for 80 bucks or less (4 2gb cards).

Dean