It's possible that your topic or audience isn't a good fit for AdSense.

Also, it remains to be seen whether mobile users will be a good audience for AdSense ads. How many mobile users are interested in clicking on ads when they're using their phones? And how many of the users who do click on mobile-phone ads will convert for advertisers by making a purchase, completing an inquiry form, etc.?

You never know. Some people in my office are slaves to their iPones and BlackBerries. Every time their phone vibrates, they immediately grab it to see who's calling. They can fire off a full lenth text message in about 30 seconds. I imagine clicking on a link is second nature to those people.

It's not clear if it is a site about mobiles, or a .mobi site.

Hello all, i just started my mobile site before 1 month, it has good content and i placed the Ads in very good places, the problem is a get about 150 visitor a day and 8 clicks maximum, i usually get 0.1 - 0.3 per click,

I don't know what's the average page view of a mobile user, but I'll guess that it's low compared to a typical website. So if you're getting an average of 2 page views per user and that results in 300 views, then your CTR is 8/300 = 2.7% and that's really not too bad. 10 to 30 cents per click might be the best you can get, depending on the niche. So you might not really have a problem after all. A one-month-old site with 150 visitors per day... sounds like you're off to a good start.