Might I recommend that if you wish to provide a link to an iPhone app, don't link directly to iTunes. Not everyone has iTunes installed on every machine? (Last I checked there was no Linux version.) Instead provide a link to your app via AppBeacon.
For instance: Velocity
They mirror the info iTunes provides, also providing a iTunes link. But that way I can review your app on my linux box and buy it directly, or buy it later on my mac laptop. (No, I don't work for AppBeacon, just a satisfied netizen.)