...on an 2008 RX 350. There seems to be a couple of inaccuracies on the official let's talk info page with regards to this phone.

1) It turns out that you can transfer single number phonebook entries to the handsfree system.
2) The handsfree system does display the cellular network signal strength. -and-
3) The handsfree system does display the roaming status from the cellular network.

ps- it's a shame they didn't implement the A2DP bluetooth profile in this revision.