I too encountered this. I now use this widget to send sms messages http://algoritmer.dk/widget/
This was my biggest disappointment with Leopard. Thanks for the link to Bluephone Elite which works for me - I couldn't make the other SMS widgets work with my phone. I don't mind forking out the $20 for the software but I was perfectly content with the address book bluetooth support in Tiger and I can't really see why it was scrapped. I spent quite a bit of time trying to figure it out since I hadn't seen any mention of it elsewhere - so it's good to at least have the issue identified.
Damn....
I used to use this almost daily. Had a Salling Clicker action set up so that as soon as my phone got within range, it would tell Address Book to reconnect its Bluetooth link automatically.
I'm going to miss this a lot. I've sent feedback to Apple, and can only hope this was left out due to time constraints and so will be re-added in a point-release.
Such a shame!
My guess is it was left out because iChat can send SMS messages (only in the US though)
Unfortunately I really can't test this much since I haven't used this feature since my T68i. However, there is some interesting information referring to Bluetooth hidden away in the Address Book package and plist.
It could simply be that these are vestigial icons, but the Bluetooth icons that map to the Bluetooth button that used to be in Address Book are still present in the application package.
Also, there are two references to Bluetooth in the plist.
I am not savvy enough to investigate this any further, but it is possible that BT functionality is still present in Address Book but simply disabled, similar to the way the graphing option in Calculator are present but not easily accessible.
Or it could be altogether gone.
Then I posted a third reply, suggesting that Apple must only have deleted the feature from Leopard because it didn't work with the iPhone. My logic (in the post) was that nothing but PRIDE could force Apple's hand to remove a useful feature.
Next thing I know the whole thread was gone.
Perhaps Apple's forum automatically bans any thread that someone posts to three times in a row.
Or maybe I stumbled on the truth 🙂
A alternative is to use Skype to send SMS messages. Its pretty cheap (cheaper than a phone unless you have a messaging plan) and you can make it so the SMS messages look like they came from your own phone.