After my vacation with E90, I moved all my business communication to trustworthy E61i and *it felt good*.
Currenly I think that E90 is hardware monster, laptop like wanabe with insufficient 'candybar' operating system topped with hardware design problems. This makes me move forward (or backward).
I also bought my first personal GSM phone yesterday. Main reason for this was the fact that I want to divert my personal contacts into always available phone and carry business with me, only when needed. This Nokia 6120c is small and capable, I think perfect for the situation.
So currently E61i for business and 6120c for personal use.