Implement Radio Interface Layer !!!
In Windows Mobile 6.5, this library exist, and it's very good for retreive lot of cell tower informations ( Cell ID, MNC, MCC, LAC, IMEI, IMSI ) lot of information we do not have access with Windows Phone!!
In France we have a MNO partially using roaming on another MNO's network, with very low quality.
Apps using this kind of information to provide intel on connection quality and report statistics about it are very popular on android/ios stores.
This need is also a must for our network speed and connexion performance application (www.nperf.com / app.nperf.com). We won't be able to develop a Windows Phone / Window version (WinRT 8.1) without having at least the MCC and MNC for the SIM (and for the network for roaming). This information in available on all other main platform like Android, and even on iOS !! Ideally, we will also need a db signal strength (RSSI/RSRP/RSRQ), the CellID and the LAC/TAC.
Such information could be very userful to get the location whenever the GPS doesn't work because inside a building.
Other userful app could be developed if those data would be available.
Ashok Kumar commented
Absolutely needed. Difficult to rely on Geo locations API or TimeZone Info to correctly locate the users location country
very important need
+1 Would be great