Originally Posted by canonbomb1987
The limit right now is 2 gb. The 4 and 8 gb cards everyone keeps talkin bout are a totally kind of technology. The Pearl might need a new OS and maybe even new hardware to use them. But the 2 gbs work perfectly. Check out buy.com they have microSD cards really cheap there and free shipping most of the time.
You shouldn't need new hardware to support the new SDHC cards, but don't bother wasting your money on the higher-end in terms of speed class. SD1.1 HW can only operate up to 100Mbps throughput (theoretical), whereas SD2.0 HW can go up to 200Mbps. You definitely need a SW upgrade though as the command set for SDHC is slightly different.