Speedy,
There isnt a noticable difference between the 2210 or e740 whilst playing MPEG1 files, though the e740 dropps more frames than the 2210.
I would be inclined to go for the 2210 as it uses Pocket PC 2003 where as the e740 used Pocket PC 2002. Also the 2210 is smaller without loosing much screen size.
Battery life isn't fantastic on the e740! The unit, like some other recent Pocket PCs, doesn't have much in the way of style or curves, it's a business like angular device. It's like an oversized credit card shape. But boy is this thing thin! This is the one of the slimmest Pocket PC's on the market.
My choice would be the 2210!
Ken
Total PDA Technical Support