The discussion around mobile music no longer mentions ringtones, as both mainstream and indie acts see the advantages of mobile platforms for promotion and distribution.

Devices have always been at the center of the digital music experience, most particularly the iPod. But with the dramatic evolution of today's smartphones, the iPod's hold on the portable music space is over, as indicated by a host of mobile-related news coming out of SXSW this week.

They include new music apps and capabilities from such digital music services as MOG, Rhapsody and Slacker, new music apps for the iPhone and other devices, and even the rare tip-of-the-hat to AT&T, which so far has managed keep its network up under the crush of iPhone-bearing horded descending upon Austin, Texas.

This will likely be discussed at Billboard's Mobile Entertainment Live event, scheduled for Oct. 5 in San Francisco (part of the CTIA Wireless I.T. & Entertainment conference), where mobile apps will take center stage.

Here's what other media outlets are saying. Wired Magazine has a nice overview of the media-sharing app Lokast, also noted here in Billboard. It has a strong music-sharing option, and launches with several artists providing promotional content. The Los Angeles Times details MOG's new mobile service for the iPhone and Android phones, which includes both streaming access and caching capabilities, for $10 a month -- $5 more than the computer-only version. PC World gets a firsthand demo of the new Rhapsody mobile app, which now allows users to store songs for playing while offline. TechCrunch discusses how AT&T managed to avoid a repeat of the network problems subscribers experienced last year by running a mostly smooth system so far.

- Disposable Social Network Lokast Shrinks World to 300 Feet [Wired]

- MOG to Launch All-You-Can-Download Music Service [Los Angeles Times]

- iPhone Will Soon Play Tunes From Rhapsody--Offline [PC World]

- Dear AT&T, Whatever You’re Doing at SXSW, Do it in San Francisco [TechCrunch]