Nike is hosting an event to unveil it's second generation Nike Fuelband, which I'm am a fan of (Redmond Pie). That and in of itself is nothing to get all that excited about given that the American public has a weight issues and are more comfortable being couch potatoes, but rather the date of the event: October 15th.
October 15th is one of the two days that are likely to be used by Apple to host its iPad unveiling. The second one is October 22nd (On Apple).
Here's the thing. It's unlikely that Nike takes its cue from Cupertino so it sets its unveiling date any day it's pleased. Having said that, Apple and Nike are good partners and likely in close consultation.
If both companies unveil their products on the same day, I can tell you whose products are going to get a lion share of the attention from bloggers and the public at large.
Assuming that both companies have spoken and worked out their schedules, October 22nd would likely be the day Apple unveils the latest and greatest iPads. The 4th generation iPad was unveiled on October 23nd, 2012 and went on sale ten days later on November 2nd.
And if the October 22nd is the Apple event, the iPad will probably go on sale on November 1st. Also ten days later.