Submitted for your consideration, readers: should iLounge bother to cover products like this? Received today for review from a company called "Cashflow Information Technology," the Imaxpower Power Pack IMP500 ($110/$59) is sort of interesting in that it's a 5000mAh battery -- one of the highest-capacity and physically largest we've yet seen marketed towards iPhone and iPod owners. But it also has all the indicia of straight-off-the-boat-from-Dongguan,…