GPRS always on
 

GPRS always on:

If you want your GPRS (or EDGE) connection to always be on, set the following:
HKLM\Comm\ConnMgr\Providers\{7C4B7A38-5FF7-4bc1-80F6-5DA7870BB1AA}\|gprs connection name|\AlwaysOn = 1 (DWORD decimal)
And to turn it off:
HKLM\Comm\ConnMgr\Providers\{7C4B7A38-5FF7-4bc1-80F6-5DA7870BB1AA}\|gprs connection name|\AlwaysOn = 0 (DWORD decimal)

Note that |gprs connection name| will depend on the name you've given your GPRS connection

How will this setting affect battery life?