I HAVE SUCCESSFULLY USED VODAFONE MOBILE broadband in three Irish towns and while moving across county lines on the M8. It works a charm.
I'm typing this blog post while seated at a kitchen table in a housing estate where wifi signals from four neighbours show on my laptop. While those neighbours may have faster landline service, I'm quite impressed by being able to run an FTP upload session, a very chatty Google Plus tab, Last.fm streaming and a "new post" window with Typepad. Google Plus works better with Vodafone Mobile than with my Eircom wifi connection at home. While running 50 miles down the M8/M7, the Vodafone service provided rock-solid service. Something about the USB modem is much more powerful than any other mobile data service I've used before. I'm now considering getting another mobile wifi router so I can share the service with third level students while in the field.
Expect to pay €40 a month for Vodafone Mobile Broadband in Ireland. For that, you get the USB modem and access to HSDPA+ when it's set up on the 3G mobile masts. If you live in Dublin or Kilkenny, you coud enjoy 15 Mbs of mobile broadband service while using the Vodafone Stick Modem.