Thanks to Olivier Dony (and lep who indicated it to me), here you have a quick way to setup a development environment with the current trunk version of OpenERP (6.1).
Download the script:
$ bzr cat -d lp:~openerp-dev/openerp-tools/trunk setup.sh | sh
Run the script:
$ make init-trunk
Wait…
Run:
$ make server
Go to http://localhost:8069
Or to localhost:8069/mobile if you want to try the mobile interface (or even to localhost:8069/?kitten=1…)
Update 2012-03-31
Please everyone note, since OpenERP 6.1 has been released one month ago, the described method will download the trunk branches (6.2).
Correct branches for OpenERP 6.1 are the following: