20-02-2009 19:51 - edited 20-02-2009 19:52
The only issue that I have seen with in the US and T-Mobile is:
If you have an old SIM card, when T-Mobile US was called something else, then it might not send text messages.
As shown in that post above, however T-Mobile supplied an updated SIM card and things seem to be AOK.
The Eiroga seems to be a dual-sim knock-off of the E71, it's unlikely that the internal hardware is the same.
It seems that handset supports GSM 900/1800/1900, so it would work on their GSM band, but doesn't do UMTS at all.