Here's RIM's official explanation about the Blackberry Buzz I blogged about recently.
>>>Unfortunately, this "buzzing" is a characteristic that is unavoidable on any mobile phone that operates in the GSM 850/1900 MHz range (not just BlackBerry, but all other phones also).
Essentially, whenever the phone transmits or receives on the 850/1900 MHz band any nearby speakers are "excited" and there is an audible buzzing.
The only suggestion I have to reduce the annoying buzz, is to keep the BlackBerry handset away from any speakers (or any wires leading to speakers). So when you set it down on your desk, try putting it as far away from the speaker as needed (or you can turn off the speakers when they aren't needed).
This is a trait of the GSM design and not specific to BlackBerry.<<
A recent example of a major CAE revamp is MSC Apex, released last month by MSC Software Corp. In a discussion with Design News, MSC executives noted that its next-generation platform is designed to substantially reduce CAE modeling and process time, “in some cases from weeks down to hours.”
The Thames Deckway would run for eight miles close to the river’s edge, rising and falling slightly with the tidal cycle. It will generate its own energy from a series of devices that will line the pathway and use a combination of sources to make the path self-sustaining.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.