No plugins. You'd have to do a new message handling/viewing application entirely (and it might be hard to override built-in functionality) + there's only limited documentation in the generally published SDKs (if you want to take a look, search for "MTM", and if you get the whole Symbian OS DevKit sources, then you'll get more complete code to show).
Smileys in SMS?
and less :-) Anyone give me a clue?
if i send from my phone to hers... shame!
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