Mana, no need to turn this thread into a soap opera...wait for your AK2i to arrive, but I would say they it will certainly arrive to play only on DSL/Phat consoles.
No big drama, you will just need to d/l the DSi 1.4 FW update fix file (search for it within this section - you'll find loads of links to it) place that file onto root of your msd, place in AK2i and insert it into a frineds DSL/Phat, run that file until it updates 100%. Take out AK2i, put it in your DSi and you're good to go. As simple as that! No fuss, no crying, nothing.