The two key issues for any positive user experience are mobility and context of use. There are places where it is inappropriate to make any sounds, and there are other situations where it improves the game experience. Moreover, players may switch the context during the game; they should, for example, be able to turn sounds on after leaving a bus, without restarting the game. Background noises, conversations with others, and audio accessories such as headset usage also affect the overall experience. For a list of Dos, Don'ts and suggestions, go grab the PDF over at Forum Nokia: Resource information: From Beeps To Soundscapes - Designing Mobile Game Audio |
You can ping this entry by using http://www.mamlambo.com/mt/mt-tb.cgi/600 .