I updated my T68 a couple of days ago and I am very pleased. Previous versions of the software were unusable and I had to switch to Booxtor's firmware. Specifically, the reader would reindex books every time I started, even if I added no books. It doesn't do that anymore
The page turn button now work more consistently in external apps. Now I don't have to hit previous page to go the the next page. If you tap the screen it still is off a little from where you actually touched. It's as bad as ever. Booxtor's firmware was better in this regard.