Gravity Forms is truly the most revolutionary plugin on WordPress IMO. It does multiple things that I wish WordPress Core had built in. Form Management to create a user generated content site, to customer relationship management, to a user generated job board. The possiblities are ENDLESS.
RocketGenius recently released their 1.2 Version of Gravity Forms
We are happy to release Gravity Forms v1.2! This is an exciting release that adds some new, exciting and very powerful features to the mix. Developers will love the data integration capabilities and novice users will love the new features that makes managing forms even more powerful.
I’m a big WordPress nut and this is truly one of the most exciting developments to hit WordPress imo since the creation of the Thesis Theme for WordPress. On the outside and inside this looks like a solid product that you could build some solid sites on.