Our Read3Di software converts the Allegro file to 3D output which we can then import to SolidWorks. It will give you much better output than Step. Take a look at this web page and contact us.
Ken, Simplified Solutions Inc.has a web-based service - called IDF to 3D - that will convert an IDF file from any CAD package into a STEP model. If you can not generate the IDF file they can probably help with that as well.
I have sent them an IDF file of the Pandaboard Allegro design and they are working on the conversion over the next day or so.
Once that is complete, I will send the STEP file to you. They will post the STEP file at www.simplifiedsolutionsinc.com in the next few weeks.
In the meantime, if anyone else would like a copy of the STEP model, please send me your email address.