By all means, dude go for it. There are plenty of titanium blades out there, they're just very limited in what they'll do and are mostly restricted to specialty uses in highly corrosive environments. You could easily make a good food prep/process knife that would make for a great lightweight option when camping, particularly if you hike in and camp anywhere as the grams add up.
This dude makes some very unique knives, some of which are Ti with a carbide edge.
http://www.graymanknives.com/store1#...egory=13757322
This dude makes hands down the gnarliest looking knives and axes on the planet and should provide you with some inspiration.
http://www.americankami.com/
These dudes make the second gnarliest blades on the planet that are more geared towards pure badassdom and F'ing s#&t up.
http://www.millerbrosblades.com/