I am currently working on a Glaurung port to the Apple iPhone. Like always, the program will be released under the GNU General Public License, and the complete source code for the engine and GUI will be available from this web site. There will probably be two binary versions, one version for jailbroken phones, and one version for download from Apple's AppStore (assuming that Apple accepts it). The version for jailbroken phones will be free. The AppStore version will probably be free, but I am not 100% sure yet. I may still decide to charge a couple of dollars.
I expect the program to be ready for official release in at most two months, and to be ready for beta testing in about three weeks. If you would like to be a beta tester, please send an e-mail to tord at glaurungchess com.