Yeah ive been telling my mac loving mates about sonar for awhile........and now sonar coming out on mac........just wondering if i could collaborate with a mate that has mac sonar if i have pc sonar? 

Hi. That should not be a problem.
All the best.

Hi zargg, can you elaborate, i dont know, doesnt mac use different file types.......or is it all just wave  and midi files?Like if you export out of mac will it import properly? or is it more of a longer file conversion process?

A quote from the CEO of Cakewalk Noel Borthwick:
"It should work identically to the PC version of SONAR, because both the Mac and PC versions use the same code. This also means 100% project file compatibility. The first free alpha version will include a subset of Cakewalk plug-ins and modules for the ProChannel, our critically acclaimed, per-track proprietary modular channel strip. It resembles an analog console and includes effects like Console Emulation of three vintage consoles, QuadCurve EQ with four modes that simulate classic console strip EQs as well as a fly-out spectrum analyzer, tube distortion, and compression including a “4K” compressor on every bus. Other DAWs let you configure how a mixer looks; SONAR lets you configure the actual mixer architecture."

Cheers mate!!!

The problem would not be the Sonar project files. 
You have to use plugins made for both versions (Mac & Windows). And these versions must be the same on Mac & Windows. Otherwise you get messages of missing plugins.
Even when you use vst2 on PC1 and vst3 on PC2 you get a message of the missing plugin - although it is the same plugin in the same version.
 
 
 

yeah right......maybe if we kept the initial recordings dry using no pluggins, cause thats the only reason i would be transfering files between mac and pc, just for layin down the tracks........as in we live in different countries and he has a mac but me and the vocalist own pc's