Yep, I indeed use the English version..
It's not a problem to wait for the new version to become available. For now I can apply the trick to rename the .epub file.. to .fb2 (though in Calibre it's very easy to create both book types).
I've tested the tiGOR 20100113 version but is not stable enough and for what I've seen so far, it's not much faster than yours or Tirwal's firmware version. So, either you two guys did a hell of a job or the new SDK version still has a long way to go to catch up with your firmware versions..
I used to install the daily builds of OpenInkpot once a week put the latest daily build versions are getting instable and some functions disappear suddenly. The SSH connection disappeared from one day to the other and only a few weeks after I opened the ticket it was restored.
So, for the time being, and certainly till OpenInkpot has a decent PDF viewer, I prefer yours or Tirwal's version..
Regards..Dick