@arkad:
re: opera mini 20 v110627, background traffic
fwiw, network log 2.25.1 (from f-droid) reports 70kb traffic from om over 24hrs, 30 up and 40 down on idle in background, all of that to opera's ip adressed servers. most traffic from start, to establish the web proxy channel, afterwards to update encryption keys.
so nothing suspicious happening, afaik, and no excessive background traffic.
although the latter might happen occasionally w/ beta versions, as opera sometimes uses beta version installs to test performance; no big deal for me with costfree slow 32kbit/s, if this is an issue then goto om20 stable, which wont do that.