Wet Tile cutters
Your best bet is to practice cutting glass 
. (http://www.bullseyeglass.com/methods-ideas/improve-your-cutting.html) If you have limited strength and mobility in your hands, you might want to look at one of the glass cutting systems such as a Beetle Bits or Cutter’s Mate. Both reportedly require much less pressure and result in a better score. There’s also the Inland Score 1, but I haven’t heard anything about it.
There are also glass breaking aids such as the Morton Safety Break.
As to your original question … you’ll need to make sure you get a very good diamond blade from somewhere like Hisglassworks.com, or you’ll have a lot of chipping of the glass. I would think that diamond blades would become very expensive over time if that is what you are doing all your cutting with. Plus, you are limited to straight cuts with a tile saw — at least with the ring saw you can do curves (but those blades are also very expensive to use for every cut).
Good luck.
Dana W.
Jester’s Baubles Fused Glass Designs
