When I bought my Linear spec 9-3 Convertible earlier this month - 06 plate, I'd got it in mind it had cruise, but on checking, it hadn't. The dealer checked viablilty with main Saab dealer in Oxford, expecting it to be a couple of hundred quid, but we were both surprised that they would charge £81 plus pence, and do it while-you-wait! It was £twenty-odd for the stalk, and the rest labour, presumably including a Tech2 (or whatever the Saabdealer rig's called) session.
Needless to say I had it done, but I wish I'd had a bit more info as to what could have been enabled - changing the see-you-home lights for instance during the computer session.
Regarding the phone hands-free, I bought a new-but-I-understand-now-obsolete IO Talk1 for £31 on Ebay, plus a lead from justcarkits for £28, and it's fine, half an hour to install, and the cheapest way of getting full auto radio mute etc I could find.
HTH
Malcolm