If you are waiting for a firmware upgrade to a long since discontinued model, I wouldn't hold my breath. As far as hardware upgrades Sony has since introduced the 700 (discontinued), 300, 600, and 900. The 300 was the only one that didn't have a touchscreen that degrades viewing quality. October should be when Sony introduces any new models, if they do let's hope they are vastly superior in screen quality to the 600 and 900, and at least as good as the KDXG and K3. Otherwise Sony will take themselves out of the market due to lackluster readers and an even more lackluster Reader Store.