from the fontlab community site:

Patric King and Lune have provided the following tips how to seamlessly copy-paste your outlines between FontLab and Illustrator. The described procedure works on Mac OS X 10.2.4 with Illustrator 10.0.3 and FontLab 4.5.1, but should also apply to other versions.

1. In FontLab, check "Do not reescale EPS..." in the FontLab Preferences / General.

2. In Illustrator, change the units to points: 1 point will be equal to 1 unit in FontLab.

3. Make a box with 1000x500 points in Illustrator, add the baseline, x-height lines and whatever you want, make your drawing.

4. Fill or stroke everything with something. FontLab won't import paths with no fill/no line.

5. Copy in AICB format (you can change this in Illustrator preferences). I don't know if it's necessary, but I have also turned off PDF copy.

6. Paste into a glyph window in FontLab. You'll have to actually open the glyph window, which is annoying.

You can now copy/paste between FontLab and Illustrator without re-scaling your outlines. It also works with Photoshop files, it might be useful when you bring bitmap images as background templates. Bon Appetit!

Thank you so much! It is what I'm looking for! Tonight is going to be OT... Besides that, do you know where can I find a good reference book about making font?

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Cool stuff! I'll ask my boss to get it. Thanks anyway...