Wireless Access to MRMLS from Cellphone or PDA

We noticed that MRMLS now features FREE wireless access to the MLS from your cell phones and PDA's. Has anyone activated this service? Is the set up easy to do? Are their any challenges with this feature? This is a great tool for all realtors to have this capability of searching for properties at their finger tips. We want some feedback from those of you who have used this tool.