Hey, Franky -
If you go to the i-to-i blog, there's a post there that details where to to to download a copy of the beta to put on your DR800. It also contains instructions on HOW to do the download and transfer to your device.
The link is here (apologies if it doesn't post as a clickable link - if it doesn't, please just cut'n'paste):
http://i-to-i.irexnet.com/
And yes, the beta has the go-to function ... which works very well (and is quite welcomed).
Happy reading!
Marilyn