TaP is a secure mobile messaging app that uses asymmetric encryption for every message and media send. You can send all types of sensitive data without the risk of eavesdropping using TaP.
XMPP PHOTON is a SDK / library for the extensible messaging and presence protocol written in managed C# dedicated to .NET and Silverlight technologies.
XMPP PHOTON is available for the full .NET Framework, .NET Compact Framework and Silverlight. This allows you to reuse all your existing code on all major .NET platforms.