Hi.
In the 6630 there is enough space just inside the back cover to store and extra rsmmc. There are even small grooves inside the removable back cover that can be used to hold it in place. Now, I have started to keep my music rs-mmc hidden nicely inside there for a day or two now. What I have not found is any documentation that says you should do so. Anyway, my question is - do you think that being right on top of the battery.. the heat or something could cause it damage? Cause otherwise.. its so perfect. No need to carry the extra swappable around all the time. 😃
Dweomer