The typeface in many new OS X 10.8 apps is Helvetica. The typeface of OS X is Lucida Grande.
I bet this changes in 10.9. At least, for Retina machines. There's a reason why iOS uses Helvetica Neue as the system font, and not Lucida Grande. It looks better on sharper displays.
The new iMessage app in 10.8 lacks instant messenger integration with services such as MSN, AIM, and Jabber, forcing the use of a different application for these features.
Erm. Those services are still there. Same as ever -- which never included MSN in the first place. Hell, theres a new framework, IMServices, which lets you add support for new services to Messages.app.
I bet this changes in 10.9. At least, for Retina machines. There's a reason why iOS uses Helvetica Neue as the system font, and not Lucida Grande. It looks better on sharper displays.
The new iMessage app in 10.8 lacks instant messenger integration with services such as MSN, AIM, and Jabber, forcing the use of a different application for these features.
Erm. Those services are still there. Same as ever -- which never included MSN in the first place. Hell, theres a new framework, IMServices, which lets you add support for new services to Messages.app.