As cool as the iPhone is, there are some inherent design elements that need to be worked around.

One of these is called "TDMA Interference", which is an unavoidable side effect of how GSM-based phones work (place your iPhone near a pair of speakers and you'll notice it). Although this doesn't happen with CDMA phones (i.e., Verizon), nearly all GSM phones, including those made by AT&T and T-Mobile, are susceptible to it.

TDMA Interference occurs any time the phone communicates with the cellular tower, and is part of why the iPhone doesn’t work with all the dock-connector speakers that standard iPods use.

Over on The Apple Core, PowerPage head honcho Jason O'Grady has discovered a good workaround to this problem via the RadTech extender cable, which has helped to eliminate TDMA interference inherent in his iPhone (a.k.a., his first born).

Head over, take a gander and if you've found a good means of helping to offset the TDMA interference for your iPhone, please let us know over in the comments or forums.