An anonymous reader writes "A month ago, ticalc.org reported smart factoring of the 512-bit RSA key used by TI to sign their TI-83+ OS, which opens the door to seamless installation of open-source third-party OS on TI-83+ calculators. Since then, two other keys found in other TI calculators have been factored by a distributed effort.
Several days ago, TI sent DMCA takedown notices to several sites mentioning the keys and their factors. All three keys factored so far have been posted to Wikileaks, and the effort to factor the remaining ones is going on."Link to Original Source