As of now, Twitku looks like this.
Before I proceed may I just give credit to the creator of Twitku, Dougworld (he moved to SeriouslyTrivial now though).
Home screen for both streams.
I love the teal color cuz it's sort of a midway between the twitter blue & jaiku green.
And then the Jaiku mentions/comments cuz in there we're allowed to make comments & discussion strings on a status update.
They're pretty much the same except for the response options. As usual you can attach pictures in both but in Twitter there's the retweet & favorite options, and in Jaiku there's the icons option.
(Wait… tbh I forgot whether you can post icons when commenting on someone's status update or not)
Direct messages~ the Twitter-only feature in here, so now the tab takes over the width of the screen. It's pretty much like all the other phone chat apps, keeping everything private and text-y.
Oh man I forgot to add the image option in the DM feature. We can send images too.
The settings is pretty much straightforward
I tried basing the options from the actual Twitku settings.
Disclaimer: I made this app mock-up for fun & not planning to make it real. But if anyone's interested in the design and want to develop a possible app, mail me & we can talk about it.