The hard working guys at S4BB have released another innovative application for BlackBerry devices. The latest is Ziplorer which allows you to unpack/unzip .ZIP and .GZ files from your BlackBerry. You can also create compressed files from your BlackBerry to easily send multiple files. This means you have compress or decompress any files on the SD card or internal memory of your BlackBerry. You can also use Ziplorer to unzip files attached to emails. This essentially brings the power of PKZip and GZip to the BlackBerry.
Pretty cool if I may say so myself. I have not had a chance to try it myself but S4BB has brought us one step closer to a fully featured device. RIM already gave us the ability to browse into .zip files with the latest version of BIS so this is not a revolutionary application. On the other hand I can see many people who would be interested in such an application. I would be interested to see if you could open .txt .doc or other common files included inside a ZIP file.
Personally I think that the application will have a much larger appeal once Documents To Go allows for attachment handling on the BlackBerry. If you are interested in more information I would recommend reading the quick start guide at this link. Ziplorer supports the following BlackBerry devices: 7130, 8100, 8300, 8700, and 8800 series.