Let me introduce myself first, I am Ozer Aydemir Senior Computer Engineer and co-founder of Bor Software LLC, Turkey (www.borsoft.org , www.boryazilim.com). We have been implementing a new mobile IM client called "Karya - Messaging" and we are near to finish the app soon.
We are using extended openfire on server side (We extended it - especially http-binding ) and IM Gateway Plugin. The screenshots of application are on http://test.borsoft.org/Template/shots/ .We are planning to distribute application for free.
We are using a platform developed together with Verkata LLC in San Fransisco CA (www.verkata.com) on client side.
If you are interested in the application (using alpha version, methodology ...etc.), platform or have a question about extending openfire for special clients, IM Gateway (i think gateway guys are much more knowladgeble then me) please contact me at firstname.lastname@example.org or directly send the mail to email@example.com .
Have a nice weekend,
Co-founder, Computer Engineer, Msc.