Not really.  They popularised for devices it with the iPod and iMac, but sticking i and e in front of a name was wildly popular in the 1990's. (eBay anyone?) I would think Apple just followed that trend rather than coming up with it themselves.  The iPhone mark was registered by infogear in 1996. Cisco acquired Infogear, which is how they ended up with it.  The iMac didn't come out until 1998, the iPod in 2001.