> Would you like to mention your device, "rom" and applications?
It's preinstalled rom.
As for applications - I have several 10s installed. Especially bad in state saving is preinstalled browser, address book and mail client. As for others - Yandex maps (the most widely used russian maps app) looses state even if switching from it for a moment to read incoming SMS. Springpad looses dialog content even when turning from portrait to lanscape to type on hardware keyboard. There are many more but I don't remember right now.