Virtual C64 has been updated to 0.9.5.1:
http://www.dirkwhoffmann.de/virtualc64/
Bug fixes and enhancements
1. VirtualC64 supports OS X Lion
2. Preference panels are now tight to their individual virtual machines
3. CIA debug panel has been redesigned
4. Deprecated CoreAudio API calls have been removed
5. Fixed a bug in the BCD to binary conversion routine
6. Fixed a bug that caused the TOD to wake up too early after reading the tenth of a second register
7. Thumbnail images are now rendered properly when switching from PAL to NTSC and vice versa (issue #107)
8. Fixed a bug that caused keyboard events to be rejected when the main window got focus (issue #110)
9. Fixed a bug that caused a discolored line to appear at the right border of the screen texture
10. Yet another startup animation