The other phone today from Sony Ericsson is the Z780. It's a HSDPA phone with built-in A-GPS, 2 megapixel camera, Bluetooth with A2DP and many Web features.
Available in selected markets from Q2 2008. No information about price yet.

Specifications (via search):

High Speed HSDPA
Built-in aGPS
Google Maps for Mobile
RSS Desktop
Automatic email set-up
Picture and video blogging
User Defined Blogging
Web 2.0 Ready
Active Sync email

Bluetooth stereo (A2DP)
Media player
Mega Bass
Music tones (MP3/AAC)
PlayNow
TrackID
Polyphonic ringtones
3D games
FM radio
Java
Video streaming
Video viewing

2 megapixel camera
2.5x digital zoom
Photo fix
Picture and video blogging
Video recording

Access NetFront web browser
Web feeds
Email
Exchange ActiveSync
Instant messaging
Speakerphone
Vibrating alert
Video calling
Picture messaging (MMS)
Predictive text input
Sound recorder
Text messaging (SMS)

aGPS
Bluetooth technology
Modem
Synchronisation
USB mass storage
USB support

Alarm clock
Calculator
Calendar
Flight mode
Notes
Phone book
Stopwatch
Tasks
Timer

Colours:
Grand Onyx
Amethyst Silver

Main screen: 262,144 colour TFT
Resolution: 320 x 240 pixels
Size: 2.2 inches
External screen: Monochrome
Resolution: 36 x 128 pixels

Phone memory: Up to 35 MB
Memory Stick Micro (M2) support


Talk time GSM: Up to 9.5 hrs
Standby time GSM: Up to 350 hrs
Talk time UMTS: Up to 4.5 hrs
Standby time UMTS: Up to 350 hrs

Networks:
UMTS/HSDPA 850/1900/2100
GSM/GPRS/EDGE 850 /900 /1800 /1900