Question About Making Slides

I'm looking for a slide maker for tech talk presentations which satisfy all of those requirements:

1. Mathematics notation with LaTeX syntax
2. Generates PDF
3. Easy notation (like wiki, rdoc or markdown)
4. Works in OS X
5. Supports Multi-byte Characters (e.g. Japanese)
6. Open Source
7. Easy Image Organize

Those softwares did not satisfy:

• LaTeX Beamer: Only 1, 2, 4, (5), 6
• Keynote: Only 2, 4, 5, 7
• Rabbit: Only 2, 3, 4, 5, 6
• Vim: Only 2, 3, 4, 5, 6

LaTeX Beamer seems to be better than others, but the software itself is corrupt.