When your users are out and about they will be looking at your website on their mobile phones. Have you checked how your website performs? If it's anything like a lot of companies it probably scraps by, it's not too bad, but the user comes away with a slightly sour taste thinking, gee, it wouldn't have been to hard for that company to have done that properly would it?
We have experience creating sites that work across browsers and devices. Where ever possible we like to create mobile only versions of our clients sites which allows the experience to be targeted specifically for that device. Using our CMS experience we ensure that the content only needs to be maintained in a single location, streamlining the process of managing your content.
Want some peace of mind?