Hi Mat,
Interesting.....
In the interim, it may be worthwhile you contacting my colleague, Peter, directly if you have any questions etc.. he's the guy who mainly looks after out SMS tech side, and I'm sure would be more than happy to chat about it.
Unfortunately he's off skiing for a week, so hopefully you're requirements not that urgent.
Our particular solution is aimed at siutation where we have to take more delivery responsibility. i.e. direct to operator or via modem, so may be more than you need, but its so simple to set up and works pretty cleanly (touch wood) thats its just as useful as a nice way to integrate an ACS with somehting else....i.e. qpage...
Please get in touch with Peter, I know he'll be interested..
I will try and hurry up a release of our stuff..
Cheers
Simon
PS
I don't know what you'd be paying for message delivery using qpage, but it might have a few good names and contacts for that kinds of thing if you wanted to mail me off-list