Does anyone know if Garmin intends to provide XM WX Satellite Weather
with their aviation portable gps units?

Garmin has released the GDL 30/30A weather data receiver for use with
their marine units and they provide satellite weather for their
panel-mounted aviation units but nothing for aviation portables. It
would be great if they had this capability with their GPSMAP 296.
Something like Anywhere Map offers( http://www.anywheremap.com/ ).