We recently decided that our business required at least 1 phone with push email. After an evaluation, we decided the well known Blackberry was going to be the choice with the WorldWide model 8830. Having used an older Blackberry with a larger keyboard previously, the 8830's smaller keypad was a concern but the tradeoff was the new small size and worldwide usage capability along with outstanding clarity and RIM's reputation for stable products.
But hold the phone, (literally) the Blackberry 9000 that is being shown on dozen of different websites now may be the answer. No keypad means a touch screen interface like iPhone. So we'll be putting off our purchase now hoping that the 9000 design and early 2008 release rumors are accurate.