HSPA USB sticks is how a lot of people connect to the net in Europe. In fact I'm looking at setting myself up with such a device when I go on vacation for the month of May in Portugal. What I'd actually prefer is a battery-powered HSPA-to-WiFi bridge like the MiFi. But I'm looking to rent/borrow the device rather than buy.
That DataJack seems pretty low speed. The European providers are advertising rates like 20Mbit now. Should be fine for email though.
![smile smile](/images/graemlins/default_dark/smile.gif)
Similar to the way the SIdekick plan will not work on non-sidekick devices, the SIM for these product may not allow you to connect to the network unless it's stuffed inside the appropriate dongle...