Well it is not really for Satio. This application was written for Nokia Touch Phones but because the Satio uses the same OS  it works, I have only tested this application on a Hacked Satio so I am unable to let you know if it works on a Satio that has not been hacked, but what have you got to lose by trying.

It allows you to calculate handwritten math’s expressions with a touch screen Satio.

The handwriting recognition is very good; it recognized all numbers and symbols I entered.

 You can enter the calculation easily and much faster as you can do it with your standard S60 calculator.

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