Been thinking about getting one myself, and I read this in the akaio faq..
"Should I buy an Ak2.1 or an AK2i?
Please first be aware that Nintendo has blocked the use of the AK2i's current exploit on the 1.4J firmware update. Current DSi kits should be purchased with this in mind. If you only have a DSi then use/purchase the AK2i. If you currently do not have a DSi, it is strongly recommended that you wait. As of right now none of the DSi specific functions (Games, DSi-ware, features, etc) have been hacked. There is a strong possibility that the encryption may never be hacked. Make your informed purchases carefully. As of 12/01/09 the current build of the AK2.1 shows some serious flaws. The official firmware and AKAIO will not function correctly on them. Team Acekard has privately commented by saying that the kits appear to be real and not cloens and they are not sure what the problem is. Finally the AK2i does suffer from Hardware build problems. Their appear to be a large amount of contact and microSD slot issues."
Is the hardware problems a common issue?
Also, is dealextreme decent to order from? I know it takes a long time to ship, but that's not a problem with me.