Future of Ringtones....????

Its time for a new concept called Alert tones. Several wireless operators are expected to introduce musical "alert tones" -- a snippet of a song lasting between two and five seconds, that users can assign to play when they receive incoming text messages and voice mail, similar to a ringtone.

Endtone seeks to replace the beeping that occurs when a call has been dropped, concluded or otherwise disconnected with a musical alert.

PhoneBites, has a service called Razz that enables phone users to insert audio clips into active conversations, outgoing messages and voice mail. Well, is there a limit to personalization?