Well can't add much to the above, still using the same XDA II here Kronas, due an upgrade soon, ( again ) had the IIi but it didn't like TT5 so swapped it back, the exec is 3G so AFAIK will access the web about 8 times faster than my present
model ( waits to be corrected, again )
As for internet banking, yep, I can access mine no problem, as HM says, go and ask for a demo

HTH
EDIT: just found a decent review, although dated, sheds a bit of light on battery / talk times .. HTH
Quote:
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O2 said the Exec's 1620mAh removable battery provides sufficient charge for four hours' 3G talk time, eight hours' tri-band GSM talk time, 15 hours' usage as a PDA and 250 hours' stand-by time.
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