First, the good news: If you have a website, then you have a site that can be accessed by any mobile device with a browser. Now, the bad: Chances are, that site looks pretty crappy on said mobile device.
If you’re worried about this, you’re not alone. Just as companies realized, circa 1996, that they needed to create a website to remain relevant to consumers, history is repeating itself in mobile. By 2013, more people will use mobile phones than PCs to get online, according to Gartner. In mid-2011, we also reached the point at which consumers were spending more time on their mobile devices than on their PCs.
In such an environment, a site designed to be viewed on a desktop PC comes across as woefully lacking. Say you’re accessing such a site from the Safari browser on your iPhone. The first thing you’re likely to notice is that it takes a relatively long time to load. The second thing is that the type on the page is pretty small. It might take a lot of zooming and pinching to navigate the site as well. If you have Flash on your site, it’s not going to come across at all on an iPhone.