Bluebunny makes icecream bars too that are splenda sweetened. They use real icecream though so they are still a little high carb because of the lactose. I get them for my son though because I'm trying to cut down on his refined sugar in little ways.

Stevia when used properly doesn't really add taste, just sweetness. The packets are easy to use, I added one to my tea and really liked it. The liquid you have to be mroe careful of though because too much makes a bitter taste. My liquid states "No bitter after taste" so I'm not sure if other liquids may leave an after taste. The packets work great with no bitterness or after taste though.