there are real iedges,but theres also a clone out there. Personally i'd get the iedge. The only reason acekard is good is because of the UNOFFICIAL firmware "AKAIO". As soon as AKAIO dies, the acekard dies with it. The edge actually gets official firmware updates.
You probably think AKAIO will never die, but a japanese guy hacked the firmware to run on clones and AKAIO team wasn't happy. If anyone tries that again, they might stop developping it.
another + for edge: it looks like cyclo ds(best flash cart)
acekard2i for sure! easier to flash, better support (AKAIO of course), and they feel so much more sturdy. iedges feel like they are peeling off the gold contacts on my microSD everytime i slide one in.