For sale is a 16mb EDO dram chip which allows you to upgrade your Prism or Edge to 16mb. The procedure is simple, but requires you to disassemble your unit, de-solder the old chip from the board, and solder the new one on. Some expertise is required. I have done a pile of units myself. If you like, you can even ship me your unit, I will upgrade it, and ship it back to you (at your cost both ways...) References are certainly available.

Anyway, cost for the chip is $45

E-mail with questions.