I think there is a certain missed point here that the author felt was going to be picked up. (Correct me if I am wrong.)
First, you can only keep AMAZON purchases in the cloud.
Second, while the processor is impressive.. they ripped out a lot of "nice" things which would have been cool to have.. I mean if it didn't have dual core 1ghz processor.. it would just be another "value tablet" or hell it would be frowned upon more than that due to the lack of bells and whistles.
So, the problem we have.. Is if you plan on doing anything besides ereading you are out of luck.. (and lets be real here.. if this was only being looked at as an ereader, it wouldn't have a forum here.)
Since you can't load whatever you want to the cloud, your stuck with 8 gigs which might be "ok" if it was *ONLY* an ereader.. However, honestly.. by the time you root it.. install the latest version of Cyanogen and possibly load a few songs on there.. most of your space is done.
Aside from that, the fact that it has no optional SD card slots may complicate the rooting/unrooting process. I would buy a Nook Color for 50$ more, because I can run CM7 from an SD card and not void my warranty since I could dual boot it. Especially if the kindle fire ends up unable to go back to stock.