I have done many Telephony and SMS related apps . I have developed I have developed apps that can automatically end , make telephone calls as well as do some predetermined action when an incoming call or SMS occurs.I have done many applications that needed advanced knowledge of networking , Telephony , GPS , SMS etc as well as advanced knowledge of RIM etc . I have experience in developing apps for entertainment and information purposes.I have done applications that can show live information like WEATHER , sports fixtures , flight details etc . I have done such application for XML , JSON , WSDL , SOAP based requests. I have also experience in developing many web enabled BlackBerry applications that can interact with websites and post / retrieve particular data , videos etc