OK, my responses to your above posts:
1. First and foremost - we have real representatives of our development team here on MoDaCo (like me, for example). If you think this is an automated message (for some reason) - I invite you to visit other, very technical forums and see our representation there as well - like XDA, Android.com, etc.
Moreover - we believe that we are one of the only app developing companies in the world today (if not the only one) who actually proactively searches for forums and users discussing Viber and offers support, and cares enough to hear the users and make changes to the app accordingly.
2. Information about ZTE Blade that's published could be biased in order to achieve certain goals. Let's assume that's not even the case in the article you linked to - we can tell you for sure that in both Market's statistics and our own statistics, the percentage of ZTE Blade users who downloaded and installed Viber is tiny, compared to other devices. As a company, we cannot ignore those stats, and we must prioritize our limited resources by the commonness based on statistics.
3. Let's try to be constructive here. Here is a link to a form dedicated to forum users who are having technical issues: SMRT ticket
Please report your problem so we have the information logged and our lab team can test it hopefully soon. Again - we can't promise it would be solved immediately (nor are problems with Galaxy S, for that matter) - but we will do our best, as explained above.
the Viber Team.