I took the plunge and purchased SPB Mobile Shell 3.5 and all I can say is WOW! What a difference from Touch Flo.
I came from a Blackberry Storm and the one thing I'm used to the most is having the weather on my home screen and being able to glance at my screen to see the temperature with the current conditions outside. You can't do that with the stock TF on the TP2, but you can with SPB MS 3.5.
Another thing that is most pleasing is THERE IS NO LAG! There was constant lag with the TF slider menu on the bottom and in many areas of TF. I haven't seen that yet with SPB MS 3.5. MS 3.5 is very smooth and fast. And also takes up less memory.
With TF on a stock system, my memory was in the high 60's to low 70's. Now my memory is in the high 50's.
I'm in love with MS 3.5. This is the way Windows Mobile phones should look and run. They do offer a free trial so that you can check it out before you buy it. My guess is that you'll have no problems buying it. It was worth every penny.
