The smartphones site looks good to me, good theme!!
You could improve the following text:
You've just found the fastest growing smartphone forum for discussions and downloads for all types of smartphones!
As the community grows, we're aiming to provide frequent competitions with chances to win some great smartphone prizes. In fact right now, you can win $500 USD CASH by referring people to the smartphone forum! You will receive information on what to do when you sign up.
We'd like to extend an invitation to you to become a part of our community, and share in the knowledge, fun, resources and prizes we have on offer. What are you waiting for? Join us today!
If you have any problems with the registration process or your account login, please contact us.
I think it breaks the feel of the site and it is not very readable
the polarishost site can not be found