is omnia i900 come out long time already?is the system using same like htc or the other PDA?is that phone using internet explorer as web broswer or java web broswer?will this phone lack,the response fast or not?what is the different with omnia 2?today go test omnia 2 the response a bit lack,is it all window mobile phone is like that?this is my first time want buy window phone,so got a lot of question.thank you.