It would be nice if the sleep mode can be set to never or a interval specified by the user. 10 minutes is to soon. I read in my office when I have a free moment, and there is usally alot of distractions. By the time I'm able to read a little which can be 20 minutes later the book has already gone to sleep. It would also be nice to have the unit go to sleep on the last page read instead of posting a screensave picture. I have a Sony PRS-505 which has both of the above suggestion and I prefer the Sony implementation better. Plus I'm whearing out my power switch