Blogger (blogspot) now allows you to post in Hindi.

 अब आप हिंदी में भी पोस्ट कर सकते हैं !!

To use Transliteration feature, go to your blogger Settings Basics page and select “Yes” for the transliteration option. Now open the Blogger Editor, switch to the compose tab and click the “Write Hindi” button which will be on top of your blog editor.

Enjoy Blogging in Hindi !! Here is the blogger  help page  on how to use this feature.
Thanks to Amit Agrawal for bringing this to notice.