Hello arduino friends.I just create a project for control your arduino board from an old (java use) cellphone ( not android ) over bluetooth.Another solution for old cellphone is to convert it to modem for control your arduino board from cloud.Cellphone read ( download ) user command data from internet ( a webserver ) and send to arduino periodically with bluetooth.I test it with my cellphone Sony Ericsson W995.I use Netbean with java2me for the java code.I have make the minimum simple code for start and test it.You can find it in this link http://www.power7.net/java2me_cellphone.html .Enjoy your arduino project.Thanks.