Got the K700i recently. It cost me 19500/= but it was surely worth an investment. This phone has been loaded with too many features and it can take even months for a normal person to actually explore them.
To get into the business this is what I need to say about its features...
Design - Really cool, Sleek, compact and the lightest sony ericsson phone in market (93 gms). So it will definitely will fit in your hands (unlike the huge 6600 from Nokia).
Integrated Menu - This is one of the good features that no one is able to match with sony ericsson. One touch effective browsing in your mobile. VGA Camera - Record videos, Take pictures (better than T630). The 4X zoom only on small size pictures and not on the 640x480 resolution. And you have file manager to create folder and store them. There is a cool facility called frames, which allows you to superimpose inbuilt frames over the pictures that you take. And moreover you have editor for modifying the same.
Media Player - Can play MP3/MP4/3GPP video. The speaker is phone is good but might not as effective when you hear it on the handsfree(comes with the mobile itself). This has a inbuilt graphic equalizer to change the sound settings. You can play any MP3 songs and set them as your ringtones.
FM - can store up to 8 channels and hear quality music. Bluetooth - Not much changes from its previous versions in connectivity. A very good feature till you actually explore them. Get a USB plugin and transfer all the resourses from your computer to the mobile. This device might cost u around 35$. You can use your mobile as remote control for your computer.
Memory- I dont know how on earth i’m going finish the 41MB internal memory. Probably put some 5 new MP3 songs inside for 25 MB and u will still have 15 MB left unused. Realy good feature. For the size of camera picture & video it occupies u can store a minimum of 200 pictures and 20 ten second video clips.
GPRS - connect to WAP world and you can fell the difference. Its 10 times faster when u compare it with T630/T610.
The only problem I had was the heating of the device while playing MP3 songs. I got it rectified with the new software that was loaded by Salora service centre. And remember one thing even though u can play with this mobile it will consume battery for most of the non-normal operations (Video recording, MP3 player, Bluetooh connectivity). But for noraml operations you can charge your mobile once in 2 days.