That's a lot of data for a BlackBerry.
Not sure how much better the 7290 handles it, but I know there is twice as much flash ROM in the 7290. That definitely will make the hourglass much less frequent. Applications will load faster due to the extra memory, less swapping going on between the RAM and the flash ROM. More software can run at the same time.
However, for performance of other things, some things might be slightly slower. The 7290 is a bit faster than BlackBerryOS4 on a 7280, but slower than BlackBerryOS3.7 on a 7280.
Also, the early version 3.8's were rather slow, so try to upgrade the BlackBerryOS on a 7290 if you get a 7290. (4.0.0.185 is only available from the Hong Kong carriers, the North American carriers have not released it yet on the 7290)
It probably would be much faster your kind of use (lots of data). Not 100% sure, but I would think it would be.
However, the CPU speed of the 7290 is not faster than the 7280, as far as I know. Just so you know in advance!
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