DarkCoin claims to be bringing another innovation to the cryptosphere. About some time ago, <evan82> announced on DarkCoin’s IRC that he had “solved one of the largest problems facing Bitcoin.” This solution would be compatible with DarkSend, prevent the finney attack (later the wording was changed to “possibly stop a finney attack”), and that with it, there will be “no bloat” on the Darkcoin blockchain.
The solution? Instant transactions. Anonymous with DarkSend, the confirmation rate should be around 10-20 seconds. Perhaps best of all, this fix will supposedly not require a hard fork of DarkCoin.