Its great to see WordPress 2.7 in my WordPress.com blog cCHETANonline.wordpress.com. Yesterday only i have seen the countdown about WordPress 2.7 is coming and now it is applied through out the wordpress hosted blog network.
WordPress 2.7 is still in testing versions. Latest release of WordPress 2.7 is Release Candidate 1 [RC1]. I am not planning to upgrade my TheChetan.com to 2.7, still using highest stable version i.e. WP 2.6.5 .
It is always better to test the latest version on other systems than using on full running system, thats why i will experience the power of wordpress 2.7 on my WP hosted blog and then after final release i will implement it on my TheChetan.com.
If you want to experience wordpress 2.7 before using it on your actual blog you can create a free account at WordPress.com and use sub-domain blog for test purpose. or If you want to upgrade your blog to wordpress 2.7 RC1 then you can get it from WordPress development blog.
I am very exited about this new version final release. Hope so it will come upto JAN09. But it depends on the current strategies of wordpress developers and error less testing versions.