Vitalik Buterin discussed the ideal Ethereum wallet, focusing on key features such as cross-Layer 2 transactions, enhanced security, and privacy protection. He emphasized how the wallet could seamlessly handle multi-chain and cross-Layer 2 transfers, improve user experience, and support decentralized identity and data storage. Additionally, he highlighted the necessity of integrating privacy features, such as ZK-SNARKs for private transactions, as well as robust security to counter threats like phishing.