Voice Messenging for Nokia Symbian phones?

[walkstroll]

I've just visited a site named Callflash.com where they're offering demos and purchases of a new app named callflash voice messenger - which they say can send voice messages to mobiles and landlines and to groups and on schedules - they don't have the 7610 on sale yet but they've offered me a free app if I review their new 7310 version. The problem is they want my IMEI number first.
Has anyone else downloaded one of these - and if so can they say if it works? Is it real or is it a scam? Should I trust them with my IMEI? I've tried asking this elsewhere but so far no one seems to know anything.
thanks

[spectrummute]

Go for it man - I got a mail on yahoo and signed up for the 6600 and got it free with no hassles. Its a cool app better than text and messages only cost the price of a standard phone call ie a minute message is the same as aminute talking. also its really easy and fast to use and i send messages now to several friends with one click and to go when I want - like just as they finish work and stuff. Get it while you can cause the 6600 is now being sold aand I got mine for nothing. Also they posted me a mail saying the 7610 was going on their site callflash.com with a trial version 30 days which is what they did with the 6600 and 7650 and others very soon so you're running out of time before they pull the plug on the testing thing. I say do it and do it fast.