Purchasing an Espruino, some questions

I think the Espruino board comes with the usual 0.1" male header pins. That's what I use. If you point them down, it can be used with breadboard. In many of the pictures in the tutorials, male pins are installed pointing up, and you can then use inexpensive dupont jumpers like these (this is what I do, and what I recommend):

http://www.ebay.com/sch/i.html?_nkw=dupo­nt+jumper

I personally hate breadboard and love dupont jumpers. I got the housings for them, and buy most of mine without the housings on ( like these - http://www.ebay.com/itm/131316225901 ), and then put them on to suit the task at hand (search result link has some housing kits. I didn't know about those, and just bought 100 of each size individually, and at a higher price. Crimping those connectors sucks, even with the proper tool - I wouldn't bother getting a kit with the pins). How much do I like those dupont jumpers? http://drazzy.com/e/espruino/etc/2015031­3_223243.jpg (unstaged - I count 14 lengths of dupont cable - Oh, and you can plug TO-220's into the female connectors and they make contact - visible in photo at the far right edge - a 3.3v regulator dangling from the Espruino on top of the digikey invoice to power the ESP8266)

An added advantage is that many of the cheap ebay modules and breakout boards come with male 0.1" pin header on them - which is just what you want if you're using the female to female dupont line. (Worth noting: the female connectors, and male headers work better than the male connectors and female headers)

Male to Female dupont jumpers are still useful, particularly if you're using breadboard.