Hello - I've been lurking in these forums for awhile, and have been waiting for someone to post an Acekard 2i vs. R4i-SDHC article, but I decided to stop waiting and just do it myself. Anyway, I have an Acekard 2i right now and have been using for a week (since I picked up my DSi). So far I love it - altho I have noticed it locks up semi-frequently in games. Today I ordered the R4i-SDHC from gamekool and I should have it Wednesday. Once I get it, I'll put them both through some general tests and post my semi review/versus article. If there is anything specifically you'd like to know about either one, post it here and I'll be sure to try it out. I'm excited to get the R4i-SDHC and check it out!