rspec users - Jan 2011 - Are there test:recent, test:uncommitted task alternative for RSpec

By default Rails provides these task to test_unit tests:

 > rake -T
rake test:recent                             # Run tests for 
recenttest:prepare / Test recent changes
rake test:uncommitted                        # Run tests for 
uncommittedtest:prepare / Test changes since last checkin (only 
Subversion and Git)

I wonder if somebody has readymade spec:recent and spec:uncommitted to 
share.

Sincerely,
Evgeniy