Thanks for all the effort so far. After seeing a number of entries, here's what I'm thinking are my general requirements.
1. I need a logo that brings together an apple, banana, and a strawberry, includes a leaf and looks like it could be a frozen yogurt or a smoothie...
2. Maybe the shapes of the fruits could be included in the logo also.
3. I guess having something that could be a straw coming out of the logo would help
4. "yog" and "bar" should be different colors. Maybe "bar" has a line underneath that is the same color as "yog"
5. I'd like the logo to look crisp and clean, that makes the place feel like it servers frozen yogurt, but feels upscale and sophisticated.
Hope that helps.