Yes, it has come! Some call it Lifestreaming as well.
Two great tools to turn your blog into a lifestream of everything else you log on the web are here, Swurl and Storytlr.
In both with -some differences- you can aggregate your online life being your blog, twitter account, facebook status, or any RSS feed of any service you choose into a blog like website.
And soon I will move thewebssessed.com domain into one! I’ve tried both but I seem to like storytlr more, simply because they allow you to group different posts from different services into a story which is a very powerful tool Swurl doesn’t have. Also, with storytlr you can import any other RSS feed as well not just stick to the supported services available with storytrl/swurl. However, swurl looks up your friends where people visiting can see what they are up to, also they provide a calandar looking timeline of your online life.
See for yourself: