Anders Brownworth (@anders94) explains mobile phone bar displays. Hint: it’s not a measure of signal strength. http://bit.ly/9cKG4V

For anyone that missed it, you can watch the iPhone 4 Antenna song on YouTube. It’s wonderful. http://bit.ly/czCgzM

@anders94 We EE geeks all know that you mean resonant frequency.

@MaribelLopez Not so ouch. That’s a $18 million cost for cases on $1.92 billion in iPhone 4 revenue. Apple can afford it.

Apple has 17 anechoic chambers. You only need 1 to test 1 phone each year. Conclusion: Lots of connected products in the pipeline #yg

Jobs aced the preso: he talked honestly thru the problem, but bent over backwards to make users happy. Textbook brand protection. #yg

Official numbers: Apple has sold more than 3 million iPhone 4s. #yg

My prediction of Apple press conference today: explanation of issue, gift cards and Apple Store help for those with problems. No recall. #yg

New World Chorale at the Boston Hatch Shell preparing for tonight’s free Beethoven 9th concert at 7 pm. http://yfrog.com/5j5nmjj

Sound check for the Beethoven 9 tonight with the Landmark Symphony. http://yfrog.com/5pd4idj