- Wi-Fi to download books off my home network, useful since I live just outside AT&T's 3G coverage area
- Expandable storage, giving me both unlimited capacity AND the ability to backup my digital purchases
- Support for more file formats
- Replaceable battery. I always worry about devices, especially expensive ones, that I can't replace the battery in on my own. I would prefer a standard-sized rechargeable battery, but I'll take this.
- And, of course, the geek appeal of Android
I'm rarely an impulsive gadget buyer, but if I get through the holidays without receiving one of these then the first after-Christmas sale just might tip the scales for me.