The softness in the market for new mobile phones showed clearly Monday in a thin array of new product rollouts at the GSMA Mobile World Congress trade show in Barcelona — usually a smorgasbord of eye-catching gadgets. With the global recession making companies hold back, big device launches were thin, and anyone wanting a flurry of new products using the Android operating system developed by Google will have to wait. “They are very conscious about the market this year,” said IDC market researcher Francisco Jeronimo.