I have searched high and low for a good replacement for conventional shingles. It just seems like they are still a few years off. With all of the thin-film technologies out there today one would think that it would be no problem to find something that you could simply substitute for your conventional shingles. But that doesn't appear to be the case just yet.
I saw a show on discovery channel last month where a dude was drilling holes into a plastic solar cell that he had hooked up to a radio. It continued working just fine despite the holes. -Well to me that sounds like the perfect solution to shingles. Just nail them to the roof and bingo... done.
In fact you could be really smart about it and use special nails to actually hold the shingles on while delivering the electricity through the roof. I believe regular shingles take 4 or 5 nails. Well why not make 2 of those a special stainless steel nail that goes through 2 pre-fabricated contact holes in the shingle. Then on the underside you just connect to those special stainless steel nails and bingo you're done. No drilling holes and pulling wires anymore. Just connect to the special RED and Black nails on the underside and you're all set.
Maybe I should patent that idea hey?

If anyone has good resources or links for feasible solar shingles please provide them here. Like I said I had a hard time finding good resources. It just seems like the technology is still a few years away.
Here's my link that I found:
http://www-personal.umich.edu/~bgoodsel/solar/blog.htm