Hi,
I see that you have two Products, mailyoulike and friendsyoulike both are good Products.
There's many webmail developers out there. I feel that you have something different like friendsyoulike and this Product can help you stand alone from other developers. My Suggestions and concern are quality and concentration on what you have right now. mailyoulike and friendsyoulike both does Not have full features that goes with a great webmail and dating Products that are out there. I can list those developers if you like.
MChecker ? What about basic features like Calendar that most webmail have??