Based on the award winning iPAQ Pocket PC platform, the iPAQ 3670 features 64 MB of SDRAM and a brilliant reflective TFT display with 240x320 resolution and 4096 colors. The iPAQ 3670 is based on the same platform as the award winning 3600 and 3100 series iPAQ's, so all software applications, expansion packs, and accesories are compatible between all iPAQ models.