A simple yet complex interface
A little more design difference can be made to the UI of the Yahoo mail so it stands out from other electronic mail companies out there. It gives this fresh looks and shows that a lot of work was put into creating it considering the public readily appreciates hardworking and sweets. Giving that inlcinication that a concept was woven from that ideology would see a considerable quota of appreciation from users. It's high time we got something different than the usual.