If you consider couple of latest samsung phones, most of them has main feature. that is full face touch screen. these kind of phones are very popular in nowadays and Samsung i900,INNOV8 are famous phones this fashion. now they are going to launch another this type phone in this April named S5230. even this is a full featured phone, this may going to be cheap.
Samsung S5230 has 3 inch touchscreen. it is bit smaller when considering other recent members. Samsung introduce new feature with this phone. that is Gesture Lock. Gesture Lock is the touch screen locking system. you can unlock the touchscreen by just drawing a letter. also Samsung S5230 has Accelerometer sensor and Handwriting recognition features.
also the speaker phone of this phone has improved. they named it as DNSe (Digital Natural Sound Engine). S5230 has just simple 3.15Mp camera. also since it's a 2G phone, you can't get HSDPA connectivity. but it allows high-speed Internet connectivity with Wi-Fi.