Devguru
Transfering databases from one development machine to another.

http://proxylocal.com/

http://adam.heroku.com/past/2009/2/11/taps_for_easy_database_transfers/

Those two solutions can be easily combined to transfer mysql database from one development machine to another (no more nasty dump emailing/sending/sharing etc.)

On first machine:

taps server mysql://db_user:db_pass@localhost/database_name online_user online_pass -p 5000
proxylocal 5000

Last command will pop out an address (like http://tz87.t.proxylocal.com/ or similar)

And second machine (to obtain sqlite database):

taps pull sqlite://development.sqlite3 http://online_user:online_pass@tz87.t.proxylocal.com

How cool is that?