As a person who has developed in the Mac environment, I strongly urge you, DON'T.
This not because I don't like Mac, but because the Mac version of VFP3a (last version) simply is not stable enough for a commercial app. It will crash for no reason an a very regular basis. I went through this with a large school district. We had a large app across a WAN at 13 locations and over 50 simultaneous users.
Our final solution was to but Virtual PC 3.3 and run the app in emulation. What a wonderful surprise. Everything worked and faster than an equivalent PC. We had been developing in PC and Mac environment concurrently and this way we just stayed in the PC, and were able to move to VFP5. The app is still running several years later.
One of the problems with concurrent development was that a function that worked on the PC side crashed on the Mac side, even though there was nothing wrong with the function. It didn't matter whether we compiled on the Mac side or the PC side. The app would run for a while then crash on the Mac. On the PC, the app ran fine.
The expert on Mac and Fox is Ed Leafe. Try www.edleafe.com. He has spent much time on this and his advice is "DON'T". Lisa Slater Nichols, 'FoxPro Machete: Hacking FoxPro for the Macintosh' also has a site you should check.
If you MUST do in Mac, don't worry too much. The interface will be familiar in all aspects, since it's the source of th UI for the PC.

Pete

>I need to develop a application for a client having macintosh copmuters. I allways did work for a windows OS. Is there a difference in programming between macintosh and standard PC? Can I develop application at home PC (windows) and just install it on a client side?
>Any comment for MAC programming is desirable. Almost forgot, it's urgent as usual.
>
>Thanks.