Anyone try the update-dr1000s-0629 version? Shows as RC3, I just checked the ftp and it's there. Looks like they have it for the 800 as well, i'll give it a whack.
http://updates.irexnet.com/beta/
http://i-to-i.irexnet.com/2010/06/30/
Improvements from v2.0-rc2
* Improved zooming (PDF, images):
o zoom above 400% possible
o auto zoom to best available factor, fix blank screens
o reduced memory required while scaling images, fix overruns
* Fix page flipping speed in reflowed documents (EPUB, PDF)
* Fix size and position of page and scribbles when switching back to original size (PDF)
* Fix unexpected failure while generating thumbnails
* Fix searching for single characters in text files