Alternativas ao CellSend para Opera com licença de código aberto

• Opera
  Todas as plataformas Windows Mac Linux Android iPhone Windows Phone Blackberry Blackberry 10 iPad Android Tablet Kindle Fire Web Self-Hosted Software as a Service (SaaS) Firefox Opera Safari Internet Explorer Chromium Chrome Opera Next
• Licença Open Source
  Qualquer licença Licença gratuita Licença Open Source Licença comercial