iSmart ds card is known to be a good alternative for Ak2i.
iSmart DS Premium Features:
* 100% compatibility, supports clean ROMS, works on NDS, NDSL, NDSi and NDS XL.
* Supports NDS download play.
* Enhanced Real Time Save and Real Time Game Guide. Making it easier for you to play the games.
* Super fast memory card reading speed. Supports any MicroSD/MicroSDHC including the slowest ones.
* Anti-Piracy Auto Detection. No patches needed for games with built-in anti-piracy.
* Automatic save type detection, no need for a save type database.
* Skinnable interface for both theme and buttons.
* Multi-lingual user interface. Customizable languages.
* Supports Action Replay cheat.
* Supports Wi-Fi, EZ Flash 3 in 1 expansion pack. No additional software needed for the expansion pack.
Source :
www.ismartds.com/
www.digimartz.com/ismart-ds-ismart-premium-for-nintendo-ds-dsi-dsi-ll_p704.html