In my case, I'd found it very useful if the scribbles I write down in my pdf files were compatible with the BOOX M90 and vice versa.
On the other hand, the underline and annotate functions don't work with my pdf docs (may it's because they are images and not text) and I find it an indispensable tool.
I also find great the shortcut to frequently used functions, which persist after rebooting the doc. (ex.: zoom type, notes, etc.)
And it would also be better if the starting of the device increased its speed a bit (with its latest version it got quite slower).
Well, now I close my wish list 'cause I see we're keeping you too busy.
Thank you so much for the improvements!