Here is all info just found it

OpenType
This 1996 Adobe/Microsoft initiative surprised industry analysts. OpenType puts either a PostScript or TrueType outline in a TrueType-style wrapper. Applications and most operating system functions outside of the font subsystem will no longer care which type of font is in this 'wrapper.' As part of the deal, Microsoft and Adobe licensed the TrueType and PostScript font technologies to each other.

The OpenType format will support all the most advanced features of existing TrueType and PostScript formats (much like GX), such as Multiple Master fonts (with PostScript outlines), multilingual character sets with full Unicode support, and extended character sets to support such typographic niceties as 'true' small caps, ligatures, fractions and alternate glyphs, all within the main font. OpenType supports automatic glyph substitution so that one glyph can be substituted for a set (such as the f-f-i ligature, or many Arabic characters), or multiple glyphs can be substituted for a single one. Glyph substitution can be context sensitive, and/or activated by explicit user activity. Uses of substitution would be a swash letter that's only used at the beginning of a word or a line, when the 'swash' behavior is turned on, formatting text as true 'small caps' or cycling through available alternate letter forms.

Although Seybold analysts reported on this as a victory for Microsoft and TrueType, that's only true if you look at the publishing business in isolation. In the broad view, it is really more of a win/win/win situation. Microsoft may finally get greater TrueType acceptance in the high-end publishing market. Adobe gets PostScript font outline support at the system level in Windows, potentially making the Adobe type library more accessible to a broader range of potential buyers. Best of all, end users win by getting a single cross-platform font format, eliminating one of the largest remaining hassles for document transfer between Macintosh and Windows computers.

Apple has not yet announced support for OpenType in either Mac OS 8.x or the NeXT-based 'Rhapsody OS.' However, Adobe and Microsoft seem committed to delivering a complete solution. (Ironically, the OpenType approach to putting TrueType and PostScript in a common wrapper is very much like what Apple did with QuickDraw GX and GX-enabled fonts.)

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OpenType has been part of the Mac OSX since Jaguar. In fact Mac OSX can use PC .ttf's.

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Info is a little bit dated man. But thanks.

PrintDriver is a large format digital print dude. His advice/opinions may not apply to the 4color/offset/web world of printing

actually i have never heard of OpenType before, but i have'nt used mac that long so

And the info was abit old but good to know.
here is all the info, LOTS of info

http://www.truetype.demon.co.uk/articles/ttvst1.htm

ICQ: 331303307

Im looking for work (logos and business cards design)

For sale: Goon.com, Capevegas.com (with site)