no i mean from the perspective of a service / content provider. in the uk it's easy to get setup, plus we can reverse bill to all networks, tried getting psms in the states, all the providers we looked at could only offer billing on at&t cingular and t-mobile. nothing on dobson, sprint pcs, etc ...
Text Anywhere are fast but do not support WAP Push messaging so they're limiteds to what you can do with them. They do however rent long numbers so you can get a reply and have that HTTP'd over to your site / server / app.
SMS in the UK is light years ahead of the US IMHO.