OddPrints now supports printing of panoramic photos. Prints are offered at 18"×4", which is great for iPhone and Android photos, at just $10.00.
Of course you can also print panoramas created by any method. Perhaps you have some taken with an Android smartphone, or maybe you have a panoramic image created with photostitch software.
If you would like to know more about creating a unique panoramic print from a standard size image check out A Different Perspective.