iodine lets you tunnel IPv4 data through a DNS server. This can be useful in situations where Internet access is firewalled, but DNS queries are allowed. It needs a TUN/TAP device to operate. The bandwidth is asymmetrical with limited upstream and up to 1 Mbit/s downstream.
Avian is a lightweight virtual machine and class
library, both written from scratch to provide a
useful subset of Java's features. It's well-suited
to cross-platform applications which need a
typesafe language but must remain small and