It's good to see that Astak has added the Mighty Bright light to their website! I have one of my own (XtraFlex) & initially I really liked it, but of late have come to only be lukewarm about it. To me - and this is just my own opinion - it was just too big for my PocketPro. I felt like there was no good angle for the flexible neck such that it wouldn't be "in the way".
So, I was in Barnes & Noble yesterday perusing their other book lights & ended up purchasing the Relight Rechargeable Book Light. It's a little pricey
($35), but it eliminates the need for endless battery purchases for mobile use. But even better than that, it's very compact, has 4 LEDs with 2 settings (super bright & bright), has good charge life, and can be adjusted to your preferred viewing angle without being "in the way" visually.
http://gifts.barnesandnoble.com/Home...?cds2Pid=25455
I'm in no way trying to rain on Astak's parade with Robertb's announcement of the Mighty Bright being available now via the Astak website. I just wanted to post another alternative that I haven't seen discussed here before for book lights.