[The December flyby data show that the western margins of Tui Reggio have a complex flow-like structure consistent with eruptive phenomena. The reddish feature at the south pole is Titan's south polar cloud system, which was very bright during the December flyby.]

Volcanism has long been suspected, but... does Titan have a magnetosphere?

The inrared features in the South:

[During the October and January flybys it is barely visible, indicating that the atmosphere over titan's south pole is very dynamic.]

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From October, 2004, Titan was inside Saturns magnetosphere. http://www.sciencemag.org/cgi/content/abstract/308/5724/992. Titan showed no internal magnetic field.

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[The current view is that Titan does not have a significant intrinsic magnetic field; hence, the external plasma impinges directly on Titan's upper atmosphere and ionosphere. The atmosphere and ionosphere of Titan act together to create an obstacle to the flow of Saturn's magnetospheric plasma that is incident on that satellite. Usually, Titan is located inside Saturn's magnetosphere and the external plasma is the magnetospheric plasma; but occasionally solar wind conditions will be such that Titan will be outside the magnetopause and Titan will interact with the solar wind. ]

From: http://www.ku.edu/~kuspace/titan.html

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There are similarities between Saturn's Titan and Jupiter'sIo:

[Io also cuts across Jupiter's magnetic field lines, generating an electric current. Though small compared to the tidal heating, this current may carry more than 1 trillion watts. It also strips some material away from Io which forms a torus of intense radiation around Jupiter. Particles escaping from this torus are partially responsible for Jupiter's unusually large magnetosphere.

Recent data from Galileo indicate that Io may have its own magnetic field as does Ganymede.]

Does Titan have a magnetosphere?