How's your iPhone advertising performing?

Are any MIR readers actively advertising products and services on the iPhone platform?

I’m asking because I saw this Tweet from Mark Curtis, top chap at mobile dating/flirting site, Flirtomatic:

We bought iPhone advertising for the first time yesterday: very impressive results for first campaign…..clearly volume in the UK alone..

I’m keen to hear more anecdotal evidence such as this. Very interesting indeed.

PS: Follow Mark Curtis on Twitter here.