I have been sporting the BlackBerry Curve 9300 (Aka Kepler) for the last week courtesy of Negri Electronics and I have been quite impressed with the OS so far. I started with OS .637 then moved to .758 and so far it has been truly solid. I guess RIM has had some time to iron out the kinks with this device since it is almost identical to the 8520 with the addition of 3G and GPS.
In case anybody else is sporting a BlackBerry Curve 9300 the team at BBLeaks managed to snag OS 22.214.171.1244 for it. You can pick it up at the links below:
Warning: This OS will not install on any other BlackBerry besides the one mentioned above and is not official release.If you do not know how to upgrade your BlackBerry OS please start by reading this step by step guide.Don’t forget to delete the vendor.xml file located in c:program files>common files>research in motion>apploader to install it on a different carriers device. Don’t forget our usual warnings: do not download and install these updates if you don’t know what you’re doing. Incorrect procedure or just bad luck could render your BlackBerry inoperative or unstable