Thanks, djm2, for both the advice and the welcome. Now that I'll be running my own business, I care more deeply about the cost of those phone calls!
But I will need the push email feature there. Could I swap SIMs in and out as needed? I.E. - when it's time to call home or to call back the client.
Bummer on the GPS. Thought I could save the GPS car rental fee. My current 8700G lacks GPS but I've gotten by in London, Amsterdam, Zurich, Munich, Konstanz and Paris just using it as a map with directions.
Another concern - how is the Tech Support access for Sprint in Europe? I know Verizon is very strong due to Vodafone and T-Mobile is great there.