[ccpascu]

Hey, Cristian here, developer of FlairBuilder.

It's true that early in the process is not OK to spend to much time on details. You'll just want to grab a pencil and a sheet of paper (or a digital equivalent as Balsamiq Mockups) and sketch down as many ideas as you need.

However, there is a point/stage where you'll need to dig down into the details, as many as possible to make sure, again as much as possible, that you got the requirements right.

Another thing: IMHO there is a clear difference between an wireframe and a prototype. With both you can go from plain, or even sketchy look'n'feel up to a polished design.

FlairBuilder aims to bring the amount of interactivity that coded prototypes have (for proper usability and user feedback ), with the plain simple look'n'feel of wireframes.

Cheers, Cristian