I have an acekard2.1 running AKAIO 1.4.1 and a kingston japanese 2gb microsd card. I find that I experience a noticeable load delay when switching out of the pokemon view screen, moving out of buildings etc. (it's about 1 second longer than no$gba) The scrolling speed when scrolling through the items in the bag is also much less smooth. This is the most noticeable aspect of it. Note that I have done all the recommended things to prevent lag, like trying the old dma mode and formatting with the panasonic formatter. I would like to find out how prevalent this issue is with other flash cards. So please post your flash card and memory card, and whether you experience this sort of lag.