Theres a rumor flying around that the next generation of Nike+/Apple products might incorporate GPS support- an addition that could offer location based information and advertising.
I'm OK with half of this-- because should I trip, go flying, and knock myself out on a tree trunk somewhere deep into a trail run, I like the thought that someone might be able to find and resuscitate me. However (however); if Apple and Nike start remixing my energy jams with ads for Gatorade I will (ohhh, WILL I) switch to a Zune. Watch me, Jobs.
The other side of the rumor gently implies expanding the running system into running shoes other than Nikes -- get the full rundown here.