Damien Mulley has run a survey of Irish iPhone users which has thrown up some interesting data, mostly the fact that quite a large number of people have paid for apps and music, with an average of €17 spent on apps.

http://mulley.ie/iphone/

While 115 is by no means a huge number of respondents to a survey, I think its interesting, especially as Gene Munster of Piper Jaffery recently estimated an average spend in 2009 of $15, only €11.70 at current rates.

http://www.informationweek.com/news/personal_tech/iphone/showArticle.jhtml?articleID=208403482