Actually, flu card is relatively new while eye fi has been around for a long time.

Wireless transfer is truly a very convenient affair. U don't even hv to bother about plucking out the card fr ur cam for transfers and u'll grow dependant on it before long. But some things needs to b pointed out.

1) transfers can take a while. Speeds r not exactly on par to direct transfers so don't expect anything close to it. Ur cam has to be on during that time.

2) the card does get abit hot in ur camera so to some, that may b an issue.

3) eye fi supports for cameras may still need some work done but their support is amazing. I remember I first used Eyefi for my Olympus ep3 and the support was terrible for it. I joined their forum n communicated directly with the support team. Within a week, they cme out a patch for me n I had no problems ever since even with my new OMD.

Lol. More like lazy buggers often differ. Hahaha