MOMCell.COM

Turn your mobile into a device that can give you an alibi and save you from embarrassing situations.

Scientific calculator. Allows to perform caclulation with high precicion and implements most populatr mathematical functions: sin, cos, tan, asin, acon, atan, exp, log, sqr, floor and ceil. Also it make it possible to define your own function, store results in variables and use variable sin expressions. Calculator store al formuls you have entered. Plot function [...]

Spruce Notes is a great utility to jot down notes on the go, especially if you have a Java device with a keyboard or other advanced input device.