for example, what could I earn on average
in a weak of automated trading,
using 100 BTC as initial bankroll ?
10% to 20% a month depending on market conditions.
Nothing is guaranteed.
Do you actually have a version of MT4 that trades with bitcoin exchanges?
I know how to program in MQL4 (very C-like).
Done lots of trading with MT4.
Yes, is it like C. Maybe you can help us syncing MTGox API with MT4.
Here is a link from someone who got it running under FXCM platform so It should be possible.
https://bitcointalksearch.org/topic/i-can-connect-fxcm-forex-trading-platform-to-mt-gox-anybody-interested-10736
Maria.