Saludos,
I have not heard any rumor of a mobile version of InfoPath. This seems unlikely due to the young age of this application. It's also pretty slow and takes a lot of computer resources.
Your best bet will be to create browser-enabled forms in InfoPath and then mobile devices with a web browser can access them. However, be sure to make a view just for mobile devices, as they have a much smaller screen!
Matt Faus / Microsoft InfoPath MVPQdabra® Software / Streamline data gathering to turn process into knowledge