Here's an interesting situation: URW releases Avant Garde, Century Schoolbook, Times, Helvetica, Bookman, Zapf Chancery, Courier, and Palatino to the Ghostscript community as freely available and modifiable basic Latin and Western European Postscript fonts.
The Polish Grupa Użytkowników Systemu TeX (GUST) took it upon themselves the task of to "remaking and extending of the freely available fonts distributed with Ghostscript" by adding further diacritics and language support.
The resulting TeX Gyre OpenType fonts also include added proportional oldstyle figures and small caps versions not found in the original Postscript release.
That's right: Helvetica and Courier with Small Caps.
(Although, the small caps R in Helvetica looks a little wonky.)
So the question arises: what is your opinion about the Tex Gyre fonts? I'm interested in either your technical analysis of the fonts themselves or your opinion about the whole thing idea.