"I am aware that currently OpenType fonts are cross platform
compatible but only with Illustrator, Photoshop and InDesign."
No, they are fully cross-platform compatible. The Adobe products you
mention, along with a very few others, are the only applications
capable of taking full advantage of the advanced features available in
some opentype fonts. And even the three products you mention don't all
necessarily support open-type in the same way.
"However, my primary workspace is Fireworks-Flash. There are serious
cross platform issues with fonts - I have looked at truetype,
postscript and opentype and they all have issues translating onto PC -
many of the styles are not available."
If you are using the same application version on both platforms, you
should have identical functionality. If you're using an older version
of Fireworks.
The only cross-platform style issue with TT or T1 fonts is that
Windows doesn't recognize any styles other than Regular, Bold, Italic,
and Bold Italic. Also, there's a font menu difference between MacOS
and Windows. Mac display all available styles, whereas Windows only
displays the family name, and you have to select the variants from
somewhere else (typically "B" "I" "U" buttons). SOME font families
from some vendors use the style function to define such variants as
Small Caps, Light, etc. MS products get ... confused.
"In our studio I design on Mac but our Flash developers are on PC -
our final renders and review renders always need to happen on Mac as a
result of this cross platform issue. This is a little inefficient."
If you're using different applications for design and rendering, and
their functionality is different, then you have a cross-application
compatibility issue. You didn't mention what applications or versions
are involved.
"When is Adobe planning on resolving this issue?"
It may be more a Microsoft issue than an Adobe issue. In addition to
the style limitations, There are no MS products that yet support
open-type features.
Although Adobe personnel do sometimes visit here, this is not a
"talk-to-Adobe' forum. Since your problem is application related, I'd
suggest taking it to the appropriate application forumsFireworks
General Discussion looks right.
And, as Bob said, you might also contact Adobe support directly with
your concerns.