I have 1gb of traffic per month. Internet speed is 2.2mbits, so it's pretty easy to waste all gb in a few days. I don't usually watch youtube from my phone, and 500-700 kbits would be pretty enough for me. Is there an application or way I can manually limit 3g speed manually, without rooting the phone?
3G Watchdog is capable, when coupled with APNdroid or JuiceDefender, to automatically disable mobile internet connections when you reach a configurable % of your quota.