My cellphone is a Sony Ericson P1i, I prefer if you can not only read but also enter and change information. Id also prefer if the program where possible to get in swedish but its not a must. Id prefer if it was a free software but is its usability good enough I could probably pay some kind of a fee. Ofcourse it needs to be able to export back to gedcom-files so i can move the information to my computer.