a good bike shop will have them. not a big deal, really, just a wider 700c wheel. 700c is the road bike standard.
the marketing guys are always looking for something 'new'. problem is, the perfect bike was perfected many years ago, and a good bike doesn't need to be replaced all that often. so the solution is to come up w/ something new and improved to make you belive what worked for you before is now somehow inadequate. like any other industry.
funny, diamondback tried 700c wheels back in the early '90s, didn't catch on then. now they are doing it again.
mtn bike action mag years ago actually made a push for 25" wheels, go figure. cannondale also used to have a model w/ a 24" rear and 26" front. whatever. I ride my steel surly road bike everywhere, works fine.