I own a samsung star. The following are the problems i faced in a week.
Samsung Star:
# the 'Gesture lock' feature stopped working after two weeks.
i dont know if it is my phone's problem or the model's problem.
# it has only two themes. you CAN NOT download themes.
# you CAN NOT download games( but i saw in a website where a person succeeded in converting game files to be used in samsung star. i dont remember the website.)
# there is NO autorotate feature for main menu ICONS/ music files etc..
(there is AUTO ROTATE for PICTURES)
# in sunlight it is quiet difficult in any type of phones especially touch(both cookie and star) if you can't see the screen and therefore can't type.
# The music files stored in memory stick can not be listened through music player. That is you can not view pictures or do anything simultaneously unless the files are stored in phone.
#The accelerometer for images is too sensitive. Even if i just tilt it a little, it goes to another image.
# IMPORTANT :
the phone seems strong but the back battery cover is Too.. sensitive. so if you drop your phone, it would come off.
*** Good stuff:
i like the large screen for messages and you can store each category in different folder.
and i like my phone coz its my first touch phone. so i really can't complain.