Just a comparison of the Manfrotto nanos vs. the LumoPro equivalent from Mr Strobist himself.
I have the LP604's as reviewed, and I like them. They have been updated to the LP605 which have a couple of nice features like leg spikes to help hold it to the ground. There are also plenty of nice hacks that you can do with these (making a lazy leg, etc.) that can make them even more convenient to use in certain situations.