I like the site dude, it is very sleek and to the point. A few thing I would recommend though. Firstly, I might add a text effect to your log to make it pop a little bit. Secondly, on your first page you have some grammar mistakes. I took the liberty of correcting them to help you out.
"We'll provide you high quality Applications anytime, anywhere !
The most important is that our service is 99.9% available on the internet." should read like this:
We'll provide you high quality Applications anywhere, anytime!
More importantly, our service is over 99.9% attainable through the internet.
Here is the next bit of text:
"Are you an Android developer?
Have you got any Applications on the Market?
They doesn't get enough downloads?
What do you wait for?
Send us your Applications and we'll provide you a lot of downloads and reviews in very short time!"
It should read :
Are you an Android developer?
Do you have any Applications on the Market?
Are you unhappy with the amount of downloads that your app receives?
What are you waiting for?
Send us your Application and we'll offer you the chance to vastly increase your amounts of app downloads and reviews.
I think that that changing these thing could really add to your site. If you need any more help with grammar, or anything else for that matter, just message me back!