OK, perhaps 'toy' was being a bit harsh...
I've always used small laptops and a 'normal' mobile phone. Dell Latitude LT (too fragile - plugs and sockets in particular) with Win95 for about 3-4 years, then Latitude X200 with WinXP Pro which is still going OK after 7 years on the road, but is pensioned off for home use now due to low speed (930 MHz) and limited memory (632 Mb RAM, 28 Gb C-drive). My primary system is now a Dell Vostro 3300 (2270 MHz; 2920 Mb RAM, 298 Gb C-drive) which is fine for all usual requirements. I'm still with WinXP SP3 although the system can be 'upgraded'
to Win7... Connection to the Internet is normally by home WLAN or on the road WiFi - but I also have a Vodafone 3G dongle if really necessary (or if the WiFi connection fee is a rip-off!).
'2.5G' GPRS never really caught on; I had it for aviation weather but that was about all. I haven't found that I need to be 'Blackberry contactable', although I accept that many people swear by the things.
Touch screen GPS is fine; I'm happy with the Garmin nüvi 600 I've had for 4 years now, but the screen needs to be cleaned reasonably often. Sticky little fingers on an iPad screen must be a nightmare, but how easy is it to clean off normal fingerprints?
iPhones seem to have reasonably easy to clean screens - but you'd be surprised how many business users still cling on to the excellent Nokia 6310i which has been out of production for 5 years now. As I do! The phone has such a loyal following that people will still pay £100 for a fully refurbished one from a specialist provider - no other mobile phone in history has ever been so popular.