Actually, the 1.2MB used by App update. You all may check it and see. it happen to me since march. but it doesn't matter to me coz i subscribe the Extra Byte package.
It does scan around once a month, use up to 1.x MB but below 1.5MB for nothing..... maybe i miss out the "updated" thing.
Besure go Menu>Apps>App. Update>Options>Settings, Auto-Check for updates, select OFF
About the AGPS, i think it has around 30min memory for the satellite position. mean that if u use Garmin XT, then will update once by AGPS, after 30min, if still cant fixed, then will use AGPS again. once the satellite had fixed, AGPS will not use again. AGPS is used to find the satellite position over internet to reduce the fixing time.
But if u use Nokia maps, and later garmin, then it will use AGPS twice. once for every application, (the Nokia maps + Nokia's GPS is link as one), it will will use AGPS once for every application
1.2MB = 1200KB (make it as 1000KB = 1MB), use once successful AGPS fix = 5KB total, unsuccessful fix = 0KB
How many time u need to use the AGPS to achieve 1.2MB? think about it. (Answer = 240 times)
Will you use AGPS 8 times daily and continue for 1 month?
if u enable always ask. Then it wont just auto download or auto check.
Thanks for sharing this useful information.