I saw this mentioned on Taxacom last week. I definitely want to try this on some flower photographs!
It looks good. I haven't tried it yet but it is available free for a 30 day trail as shareware. They also make a picture editing program called Heliconfilter that looks interesting and useful. If anyone is already familiar with either program or tries it out please let me know how you like them. Also if you know of any competing software I would be interested in learning about that too.
HeliconFocus is a program that creates one completely focused image from several partially focused images by combining the focused areas.
The program is designed for macrophotography, microphotography and hyperfocal landscape photography to cope with the shallow depth-of-field problem.
Helicon Focus also aligns images as objects often change their size and position from shot to shot. This function is especially important for macrophotography.