I think it is worthwhile to point out that the Human Genome Project, and all the other genome projects being done, as well as the cytochrome-c and similar work that was done prior to the HGP, are not pursued to "prove" evolution. They are done, among various other reasons, to better understand evolution.
If you want an idea of what kind of research is going on, have a look at:
Genome Biology 2005, 6:207
http://eprints.ouls.ox.ac.uk/archive...rlong_2005.pdf
I have included various quotes and references to provide a timeline of sorts, but ultimately we simply haven't had time to do the sort of work necessary to provide even a skeleton tree of common descent.
While there have been 300 species (out of over 2 million species (there are over 15,000 genera of fungi, if you want to take a step up)) whose genomes have been "fully sequenced" there appear to be only around 9 "finished" sequences of animals.
"Back in the 1980s, I had the experience of trying to track down the cystic fibrosis gene. It took us about 10 years of very hard work to finally succeed at that endeavor. And there were probably 100 investigators involved and millions of dollars were spent on this enterprise. "
"Like Francis, I spent a decade looking for one gene. That gene cost hundreds of millions of dollars to actually find and sequence, and it was a combined effort of NIH funding and work funded by Merck."
PRESS BRIEFING [] ON THE COMPLETION OF THE FIRST SURVEY
OF THE ENTIRE HUMAN GENOME, June 26, 2000
http://www.ostp.gov/html/00628_3.html
The first draft of the map of the gene containing parts of the human genome was finished in 2000, the final version, 99% of the genes at a 99.99% accuracy was finished in 2003.
press release
International Consortium Completes Human Genome Project,
April 14, 2003
http://www.genome.gov/11006929
as of 2002
The complete genomes of three animals have been sequenced by global research efforts: a nematode worm (Caenorhabditis elegans), an insect (Drosophila melanogaster), and a vertebrate (Homo sapiens).
"The evolutionary position of nematodes"
Jaime E Blair1 , Kazuho Ikeo2 , Takashi Gojobori2 and S Blair Hedges1
1Astrobiology Research Center and Department of Biology, The Pennsylvania State University, University Park, PA 16802, USA
2Center for Information Biology, National Institute of Genetics, Mishima, Shizuoka-ken 411-8540, Japan
BMC Evolutionary Biology 2002, 2:7 doi:10.1186/1471-2148-2-7
http://www.biomedcentral.com/1471-2148/2/7
Several genomes other than human have been finished, currently more than 300 genomes are fully sequenced
Computational analyses of biological sequences -applications to antibody-based proteomics and gene family characterization
KTH, Biotechnology
2005-12-02
http://www.diva-portal.org/kth/abstract.xsql?dbid=527
These represent over 128 000 genes from nine fully sequenced animal genomes
TreeFam: a curated database of phylogenetic trees of animal gene families.
Nucleic Acids Res. 2006 Jan 1;34(Database issue)572-80
http://www.pubmedcentral.gov/article...?artid=1347480
So it would appear that while 300 species have been sequenced, the number that are in finished form is barely in double digits.