1. Some videos which disassemble it shows no serial port in the main board.
2. A little more white than my KPW1.
3. A new system version 5.7.4
4. You can find percentage of battery when press ‘option’ with cover connected.
5. Amazon customer service will remove the special offer if you asked. Without any charge.
6. Force refresh when there are pictures( the same as KPW1)
7. Not hacked till now. Though someone said they may find a data point.
8. Not that heavy with the cover.
9. When fully charged, the battery can be used for about 5 hours reading without the cover.
10. Seems smaller.