The coolest color in laser pointers is blue right now – just out for commercial use reportedly after 8 years of research. It uses a gallium nitride crystal to produce a 473 nanometer blue laser light which is sure to make all other laser pointer owners green with envy – those with green ones as well as the red ones which are so cheap now that I picked one up for ¥20 /US$3 in Shenzhen some time ago.
Our project manager has found a shop that sells blue laser pointers in Shanghai for ¥500 /US$80. Should I get one? (Should I get you one? Let me know by Friday). I see the website thinkgeek sells them for US$500.