Help: American SMS text gateway service required (potentially UK too)

I had a note in from a regular reader asking who I recommend for the provision of outgoing SMS text messaging services in the United States (with the potential to add the UK as a destination later on).

They’re after a good quality service with API — but they don’t need two-way, just outgoing.

I have a few companies in mind to recommend but I thought I’d throw it open to the audience. Do you have any suggestions?

If you’re a provider, please drop me a note (ewan@mobileindustryreview.com) or say hi below and I’ll pass on your details.