You don't have to be in front of a computer to access your Market Leader account. Logging into Market Leader on your smartphone gives you access to the mobile Dashboard which includes the following entities.
The mobile version renders New Email, Reminders, and Contact lists, where each item in a given list links to a detailed view of the item.
You can access Market Leader on any smartphone, but for the best results, Market Leader recommends using Windows Mobile or iPhone platforms, although with new generations of smart phones, the choice of platform might not be an issue (e.g. it looks pretty sweet on my Nexus S).
For smart phone access, use the following procedure.
In the browser address bar, type in your website and add "/m/" to the end of the URL.