Following shortly their review of the S500i (as earlier posted), GSMArena now took an in-depth look at the W910i.
They are very dissatisfied with the high price tag of the handset, as they also state in their conclusion:
Sony Ericsson W910 is the top dog in the Walkman series when it comes to feature phones, the smarty W960 being a class of its own in the company’s music portfolio. Some of W910 features are true high-end stuff: the quality display, elaborate music features, exquisite design, fast performance and 3G capabilities. Those however coexist with painfully familiar features and applications we’ve been getting in downright midrange handsets. Too much compromise to put up with in this price range and the tag on W910 is likely to get even the brand loyals a bit reserved. Nokia and Samsung seem to prepare a handful of cool music offerings in this price range too, while their non-music oriented handsets too have good music players. Despite the rich sales package, including a 1GB M2 card and the cool M2 USB reader, the W910 will be under pressure, as price is the ultimate decisive factor in this increasingly competitive market.
However, they are not so picky about the sound quality as Mobile Review (as mentioned here).
Read the full review at GSMArena.