As well as having Wi-Fi, Bluetooth and an FM tuner with RDS onboard, the phone also features built-in GPS. You can use the QuickGPS application to download satellite data to speed up the phone's lock on time. After updating the satellite data and downloading Googlemaps (there's no navigation software bundled with the phone sadly) we found that it was very quick to lock on to your location and pretty good at holding on to a fix, even in quite tricky areas.
A smartphone doesn't just need to have lots of features, however, it also needs to get the basics right like call quality and battery life. Voice quality on the S740 is certainly good, but it's not outstanding. It sounds a little bit more tinny than your typical Nokia and Sony Ericsson phone, but on the plus side the speakerphone is loud enough to be useful - something which certainly isn't always the case with smartphones. Battery life from the 1,000 mAh power pack, on the other hand, was pretty impressive by smartphone standards. We got around two and a half days out of it for a mixture of phone calls, web surfing via Wi-Fi, music listening and emailing.
Despite it's foibles we still quite liked the S740. It's definitely not a phone that's going to appeal to everyone, but we think that if you're a heavy user of email and not too keen on Blackberry's range of phones, then it might be a good option. Especially as it offers such a comprehensive range of features.