SwitchEasy has extended its iPhone and iPod accessories with the CapsuleRebel M case for the iPhone 3G and 3GS, and the Cubes case for the fifth-gen iPod nano, which is now available in silver and metallic gold. The CapsuleRebel M is a revised version of the company’s earlier CapsuleRebel case, and features an UltraFrame hard protection system, with soft polymer for cushioning. The case is designed to protect the back and sides of an iPhone, and includes an ergonomic spine structure for better grip.

Each CapsuleRebel M is bundled with two anti-static screen guards, one microfiber wipe, one video dock stand, two connector and two 3.5mm jack protectors, plus white and black universal dock adapters.

The Cubes for the iPod nano uses two fused pieces of silicone, which secure the back and sides of the iPod. The rest is protected by included screen, dock protector and clickwheel guards. The full range of Cubes colors now incorporates silver, metallic gold, red, black, lime, fuchsia and blue.

Buyers can find both cases at SwitchEasy’s website, with the CapsuleRebel M costing $30 and the Cubes $15.