Ok I'll explain it to you in simple English then

Saera is at this moment a n900-only app which is participating in the 2012 Coding Competition (link for which you can find on the top right side of your page)

As per the rules of the Competition, only bug fix updates are allowed till voting closes i.e. NO new features are allowed.

Its pretty obvious that while a developer won't release any new features; he will still work on them right?

Hence, taixzo has in his own personal, private Saera build added this Mee42 script.

After the end of the Voting for the 2012 Coding Competition, he will be releasing a updated n900 version of Saera with Mee42 integrated. He will also attempt to build a similar version for the n9 which at this point doesn't have Saera.

Profit?