Epistula is to AmigaOS what GAIM is to Linux and Windows. For people not in the know, GAIM is an instant messenger application which can handle a variety of IM protocols, for example Microsoft MSN, AOL AIM and Yahoo Messenger. Epistula is initially only in development for AmigaOS 4, but hopefully in not-to-distant future, will also be made available for MorphOS, AmigaOS 3.1 and AROS.