Before to get a decent theme fit for BuddyPress, you need to choose one that is compatible for BuddyPress. The bad news is, you have to pay for a small amount to get that feature. Now, BuddyPress is made available to any WordPress theme.
Other features include, major bug fixes, no more installation wizard, and these 7 new features:
new welcome screen
default active componenets
Read the rest of the news here: codex.buddypress.org/developer/releases/version-1-7/