What does it mean?

On my profile there is something that says "Feature Store:" and has $67 on it. What does that mean?

i think thats how money u have

you got it - that is how much CPF$ you have to spend on features on the board - you can buy download credits at the feature store (link is at the top of the page on the right) so you can download ringtones or you can save up for a name glow and other things like that