1. Is the pen really as good as they said? Anyone else tried it? 2. Does it really last 10 hours? 3. With the jacket does it really last 20 hours? No other penabled tablet has this kind of battery correct? No one else will be able to get this kind of battery until cherry trail/broadwell in mid 2015 right? 4. Why do people have the device on this forum yet no reviews on the interwebs? 5. How much of a hassle is it to replace pen batteries?