What's the best Weight Watchers points app?

[iPhone envy]

I see there are at least a handfull of points calculating, tracking, etc. programs out there. Anyone have expereince with a few of them (say iPoints or FoodPoints)?

 

[gadgetdad]

I wondered this myself. Tried iShape because it says it does points, but you have to know the points to the foods you input. There isnt a calculator. So there goes 9.99 down the drain.