Back on topic, regards the Virus battery, you should of course back up all your patches and multis using SoundDiver (for Virus C and below) or Virus Control (for Virus TI) before ever taking out the battery.
Thinking about it, I guess it makes sense to switch the batteries out after a few good years. Gonna grab a couple next time I'm out. I'd hate them to leak and damage circuitry. Apparently cheaper CR2032 batteries may be of a lesser quality and have a higher probability of leakage. Given the present Panasonic CR2032 ones have done really well for this length of time in mine, I'll be grabbing those.
Panasonic CR2032 3Volt Lithium battery.

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PS > And another thing! Will the Ti|3 have user customisable/importable wavetables?

A ribbon-controller or XY-Pad might be nice, too, please! Thanks!