wordpress and smartphones application

i need a couple of applications, both for wordpress and smartphones but is not mandatory. first, an instant post messenger, really is just oneway messages,and only me will post messages, but inmmediatly appears on the users screens and sound an alert something like this [login to view URL] second, is a simple scritp using 3 variables, a subscriber, set a initial amount VAR 1, then, he has 2 buttons, if press one make a calculation and set a new amount for VAR 2 that is saved like other variable, well is simple and if you can make me this i explain in detail