[Jagga]

Most likely his business is dumping BES - I don't see good alternative with Exchange Push on its own, yet with "Microsoft System Center Mobile Device Manager 2008" it gets close (1 platform of course). I'd rather not use Microsoft smartphones (just preference of ease of use and navigation and simple features lacking: oh yeah the OS just supported copy & paste hehe Smartphone Edition).

Another possible solution is thinking of the newly announced Nokia E71 (technically its on par with the BB Bold); however rumor has it this caused RIM & Nokia a tussle and BBConnect will not be rebuilt for it. You have the ability to switch homescreen profiles and links for Personal / Work (Email accounts also switch: Both support MS Push and still come through regardless of the profile your in). Thousands of useful applications, VPN support built-in, VoIP also, and those updates occur every few mths so its good.

Check out a few articles on various platforms: what software options/abilities they offer that'll suit ur work & personal needs (its your device now), and narrow it down to 3 devices (mix up the form-factor as well keyboard, slider with keyboard, touchscreen, touch+keyboard etc). Once you've got UR final 3 ask the admins if they'll be supported to corporate needs.

If the change seems so arcane and unbearably difficult, there's always a chance for a lateral move to another company that KEEPS their BES. ;)