Last week I shared my incredible experience of mobile checkout at Sephora. In line with the subject, Square (which lets you accept payments on your smartphone via an external dongle) launched today a new Card Case payment system that turns your phone into a mobile wallet.

A recent CNN Tech article titled “Cyber Monday was biggest online shopping day ever in U.S.” reported that, well; Cyber Monday 2011 was a huge success.

To me, this was not a surprise.