That one in the ebay link looks a bit different than the one the guys are hacking...Does this one also require hacking?
Yes, but it may be very difficult to hack as I don't see a DTR signal pad to attach to. The DTR signal is avalibe on the CP2101 chip, but it's very difficult to solder anything to those small spaced chip pins. Doesn't mean it can't be used but you may not be able to get it to utilize the auto-reset function and will have to use a well timed manual push button reset on the arduino board prior/during uploading.
Lefty