Sad to see that SonyEricsson decided to go with Windows Mobile. They also released some nice looking Symbian phones that have touch screen, 5 megapixel camera GPS and forth, but aren't plagued with Windows Mobile.
There were many rumors about Sony Ericsson using Windows Mobile - but I refused to believe it. I would have hoped they improve their UIQ Symbian system and release their next highend phone in UIQ 4.0 (current latest is UIQ 3.0). But Sony Ericsson has announced two new UIQ 3.0 phones at the 3GSM Conference (the X1 stole thunder from these two phones). The G700 with a 3.2 Megapixel Camera with image stablizier, WiFi, and 3G (not international). Also, the G900 with a 5 Megapixel Camera, auto focus with touchscreen focus designation capabilities, WiFi, and 3G (not international).
Here's the G900:
GSM Arena YouTube Video:
http://www.youtube.com/watch?v=I5g8LO38WPE
Note that it comes with a stylus but doesn't necessarly need it during phone operation. The newly designed UI works just as well with fingers (except for the notes application of course).
As I understand Xperia isn't even built or designed by SonyEricsson, but instead it's a HTC phone that SE has just pasted it's own UI on top. It will also be manufactured by HTC for SE. Ericsson used to make nice phones. Now they have sunk this low. Can't even design their own phones.
There are rumors of a merger between the two companies. If that's not happening, then HTC and Sony Ericsson will work very closely. Sony Ericsson actually designed the phones themselves but they teamed up with HTC since they have a lot of experience with Windows Mobile and their hardware. They could obviously start again, but why should you work yourself when you have someone else that is willing to work with you.
Keep in that that these competitors ALWAYS list features on their best, most expensive models, WITHOUT PRICING, and it's always in the future. You can't compare iPhone of today with something that will be released 6 months or 1 year in the future. You have to compare future iPhone with these knockoffs.
You are not familiar with the mobile market. Don't all COMPANIES list their products best features? Including Apple? Sony Ericsson only announced this phone's existence and when it's avaliable. They don't need to announce the pricing of the phone, which does usually depend on the network operator. Retail price (completely unlocked), this phone would be about 600-700 USD. The high pricing is because it's a feature-packed phone and it's considered high-end (apple's iPhone is mid-range).
Not an iPhone knockoff, just another competitor. This phone caters for professional business people unlike the iPhone. Again, it has Office, Outlook Exchange, international GSM and 3G support. I would love to compare it with iPhone 2 as soon as Apple releases it. And I do hope Apple will respond back by giving a better phone, adding it to their portfolio.