TechCrunch reports that a version of Picasa for Mac later this year expected as disclosed by a Google emplyee. “I asked if Picasa for Mac was coming, and as luck would have it I managed to pick the Google employee with the least amount of media training and immediately put her on the spot. Her response: Picasa for Mac is under-development and will be launched later this year.”
For now, Picasa only works in Windows and Linux, using WINE. There's also a Mac uploader for Picasa Web Albums that lets you upload photos from iPhoto.
Google is increasingly concerned with supporting other operating systems than Windows: a single Google software works only in Windows - Google Talk, even though there's a limited web version.
|Google Toolbar||yes||yes - Apr. 2006||yes - Apr. 2006|
|Google Desktop||yes||yes - Apr. 2007||yes - June 2007|
|Google Earth||yes||yes - Jan. 2006||yes - June 2006|
|SketchUp||yes||yes - June 2006||no|
|Picasa||yes||no||yes - May 2006|
Google, Picasa, Mac, Mac OS X