Shane wrote:Dave,
I haven't found a direct replacement yet, been a little tied up with Oshkosh follow ups and more. Radio Shack has a coiled DC plug with assorted tips. The tip size for the iFly is 3.5mm OD x 1.3mm ID barrel as they sell tips seperately. Below is the link, I hope this helps. Frys might have an option two. Below is a link.
http://m.radioshack.com/radioshack/product/detail.do?itemId=3889594&categoryId=&path=#
Went to Radio Shack and the item you reference is perfect. Nice coil cord (12v, 3A). Has on off switch and comes with 4 adapters. At $15 it's tough to beat. Thanks!