A new peer-to-peer cryptocurrency application called Echo has been launched, allowing users to send and receive crypto directly on their social media feeds. The application, which is supported by Solana, enables transactions using only Twitter handles, eliminating the need for wallet addresses. Users can earn 'waves' points as they engage with the platform, with promotional offers including 500 waves for new sign-ups. Additionally, Kaito, another platform, is promoting a points program linked to Yap, where users can accumulate Yap points by connecting with the service. There are indications of potential airdrops associated with both Echo and Kaito, attracting interest from the cryptocurrency community. Users are encouraged to join these platforms to take advantage of the benefits and potential future rewards.