Keerect - Virgin are a MVNO - 'Mobile Virtual Network Operator'. Virgin have never really been much for mobile data, either GPRS or 3G. Possible reasons include:
1)Doesn't fit with target market. VMobile always stated they were after the hip young gunslinger and data doesn't *really* fit in here.
2)The cost to Virgin for data from T-Mobile is prohibitively high in the agreement - high enough to prevent Virgin from offering decent data tarrifs. Chances of this getting re-negotiated, considering the spat they had with T-Mobile over charges a couple of years back - naff all.
So in all honesty, no.