As long as we're offering SWAG's - I suggest that Sony will offer a PRS-700 with WiFi and a Pixelqi display - low power, color lcd. Linux drivers sould already exist due to the relationship with the OLPC XO project. In fact if you took the specs for the OLPC and repackaged you might have an attractive eReader.
BTW- I'm a happy PRS-500 owner, but I desire an iliad.