Excellent choices for a feature phones!
Somebodies got an HSDPA (US & EuroAsian compatible) 3G modem in their pocket.
Hmm .... 3.6Mbps (not real world but I've seen USB tethered speed tests - also not consistent over an hour of surfing/streaming/downloading) of 3302Kb/sec = 3.3Mbps. If you manage a consistent 2.6Mbps all the way until the battery lasts, you'd could still enjoy roughly 2.8Mbps over BTv2.0+EDR (which comes in the K850i) !!! :O
Best thing is SE's world renowned Battery life. Since my old T18z (4hrs), T39m (6.1hrs), another T39m (6.5hrs), z500 (4hrs), z520 (5hrs), K790a (6.8hrs - 26hrs flight mode for music only); I've always gotten continuous & regular talk times!
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To me ... SE is the Apple of the phone world, while BlackBerry is the Palm of the cellular, mobile email & corporate wireless applications of the world .... when Palm was doing great (around the time of the m505/m525; or just before Sony dropped out).