I decided today to try these out using Daniels berryio from his neon horizon github.
Having both the 4tronix traffic light gpio card and a raspberry jamboree card designed by minigirlgeek I decided to see for myself what they were like.
Firstly I connected the 4tronix one to the gpio pins, this one has three LEDs and the pins marked up with PIN number and pin name which is good if using with a project to decipher the pins.
As you can see it uses pins 4, 17 and 18.
Projects I can think of would be to light up or blink the number of unread emails or tweets or simple notifiers.
Now you probably wondering which one to pick but it's not that simple. Both boards are excellent and there isn't no way you can choose the 4tronix has three LEDs in three colours to work with and the jamboree one two bright LEDs and a cute raspberry shape, by picking either you can't go wrong.