The Sharp GX15 mobile supports:
Estimated memory:1/2 mb or more.
Connectivity:Wap,GPRS,GSM,Bluetooth,infrared
Messaging:MMS,SMS
Image files that I know:JPEG
Sound files that I know:Midi,Amr,smd,imy
Video files that I know:3gp
Games:yes
Aplications:YES
Calculator:Yes
MP3:No
Waw:No

I've owned Samsung, Nokia, SE and Motorola phones and this is one of the best i've used! Excellent phone, clear sound, easy texting, easy menu system, decent enough camera. My only gripes would be - i'd like mp3's on there as ringtones (the supplied tones are rubbish but then aren't they always?) and a better camera maybe.
Not too heavy, comfortable to hold - just generally well designed!

Put it this way - i'm looking for a new phone now, just because i've had this for a long time...and i'm struggling to find something that really makes me want to buy it (i'm on PAYG, its waaayyyyy cheaper for me)

The thing that impresses me most about this Sharp GX15 phone is just its general ease of use and speed. Once you open up any of the menus, you are in right away, there are no "please wait, opening file" signs. It never freezes and suddenly processes all the commands you've just tapped into it either, like I've noticed a lot of the Nokia models do. However, this is probably because of such a small memory capacity - only 2 gigs, but yeah, all round I definitely recommend this phone. You can get one off eBay for about £50.

The Sharp GX15 is a very good phone and easy to use, especially as I was used to using a Nokia. Would recommend it to anyone, excellent value on pay as you go.

The Sharp GX15 is an excellent phone if you just want a quality mobile without the flashness of 3G and the like.

I used to have a Motorola V525 before and I think I prefere this mobile! Nice and light - perfect size. If you are interested in this mobile you wont be dissapointed!

The Sharp GX15 has the greatest of videos for £90 and best camera. The downloads of games, ringtones, pictures etc. are great just simply save it and you can also preview the tones on your phone web the phone is easy to use. It also has picture phone book (I do not now how to use yet) I would recommend this phone to any buyer this is top quality for your money. :o)