Yeh I would stick with 3.0 for now. 3.1 is for the more brave folk out there and for anybody who only has access to the Titanium client. Though, the installation procedure of both are the same. Maybe just specify that 3.0 is for 0.6.6 (mostly stable) and 3.1 is for 0.7.0 (still rough atm, use only if you have the Titanium client)
In addition to Sesmar's perfect description, PEQ's database is about quality, and mine is all about quantity
