Flash query (mobile) ! Please help !!

Hi,
I am new to Flash and I need help with a certain issue. I will be as descriptive as possible.

I am working on a mobile application, in which I need to use Flash. There should be a common button for 'start' and 'stop'. Now, my phone is connected to GPS (Global Positioning System) which shows latitude, longitude and altitude. When I click the 'start' button, the information (latitude, longitude and altitude) is displayed only once and not continuously.
(What I mean is, when a person using the mobile clicks 'start', he should get the information of his location continuously displayed on his screen instead of just once.The information should be received till he clicks the 'stop' button)
How do I go about displaying this information continuously in Flash ?

Please help. Thanks.

Well you would use a setInterval to continue polling the location data but have you determined that Flash is the best way to go about this? I only ask since there's very limited support for Flash on most popular mobile devices.