Now that tablets are becoming mainstream and smartphones are getting better displays and faster processors more and more people are going to be browsing online with their mobile devices. If there was a time to make your website mobile ready it would be now.
If your website runs on WordPress it is as simple as selecting a theme or plug-in that will transform your website for mobile devices. Most themes and plug-ins will automatically detect if a user is browsing from a computer or mobile device and automatically serve the right layout.