DeNA uses Perl extensively in its services and was introduced to Perl in 2003. About 100 DeNA engineers currently work with Perl, including over 50 on the mbga.jp team. DeNA has released several open source Perl projects on CPAN and at YAPC conferences. Key projects include MobaSiF, a web application framework, and mobamail, a high-performance mail delivery system for mobile phones. While DeNA has