I have migram and it seems the push notification doesn't work
Migram takes hell lot of time to load messages . Its UI is garbage
With an open API, you're always free to write a better client.
Don't forget to show us your work.
They also didn't write their Android client, just like with WP they had people compete and then announced that the winning entry is the official one. The same thing will happen with Windows Phone.
Though I have to admit, their iOS app is just beautiful.