I love how at first, you said "we are clustering our server" and then later you say "they told me". So which is it? Is this an app that you developed or are employed by the developer? Or are you a fan trying to spread the word? I am going to assume the first one.
And going on that assumption that this is your app or that you work for the developer, telling a potential user "w.e. tickles your pickle" surely is no way to attract new customers (although you did that quite well with your own bashing of your server structure).
And on a side note, I noticed that the new trend in app development seems to be "universal messaging apps between device platforms". Well, if there are 10 different apps that are "universal" but can only communicate between users of that particular app, how are we really any closer to universal messaging than we are already with systems such as AIM, Y!IM, GTalk, etc?
I don't need yet another messenger that is limited to users of that particular app. So I'll pass. No matter how many platforms it runs on, it's only as useful as the amount of users, not compatible devices. I guess that "tickles my pickle".