1. Blueftp: i use this app to transfer java apps to other phones, normaly you can’t transfer java apps you have already installed if you using a java phone but with this app i can do that, i also use this app to create themes.
2. Collins dictionary: to me this is the best dictionary for java phones, it far better than oxford(file size is 8mb).
3. Ezreader: i use it to read both pdf and word documents on my java phone.
Now i use an android phone let me list few apps i got that maybe helpful to some people.
1. Feem: i use this app to transfer files to my pc and files from my pc to my android phone via wifi.
2. Sybla tv to watch satelite channels
3. Mobogenie: to download youtube videos. I would stop here list yours.