Who says Google Adsense for publisher is only approved for a self hosted blog and blogger blog are not eligible for application? Here its a story of my friend who got approved with the Google Adsense last week who applied with just a blogger blog.
Google Adsense approved a blogger blog for publisher account. My friends owned a blogger blog Online People Magazine updating you with magazine cover of the month, its a copy of my Magazine Cover Girl Blog. I had my adsense alive and ads were running but he didn’t had. He applied twice with the same blog and got rejected all the times.
This is how he went with his blog
1. Update regularly with posts first month he published 7 articles.
2. From next average 20 posts per month for three months and then the average slightly decreased.
3. Within 6 months he had 100 posts in his blog, God know of what traffic he had.
This is what is post archive revealed
March 2010 – 13 Posts
February 2010 – 12 Posts
January 2010 – 18 Posts
December 2009 – 20 Posts
November 2009 – 20 Posts
October 2009 – 19 Posts
September 2009 – 7 Posts
On March 15th he applied for Adsense and within 3 working days his blog was approved.
I just wrote this to inform all that blogger blog can also be used for application of Adsense provided you meet their criteria and your blog follows their Terms Of Conditions. Only things you keep in mind is you have a unique content.

It all depends on the hard work and the originality. Regular updates of even the free blogs with all original content would surely help in getting the adsense account approved.