Google Talk can be accessed from various clients. The official Google clients which let you use Gtalk are below. The features vary from client to client.
- Google Talk – Windows Software
- Gadget – Flash Plugin
- Labs Edition – Windows Software
- Gmail Chat – Works in any browser ( Video chat requires plugin )
- iPhone version - Works in Opera, Chrome, Firefox default
- iGoogle and orkut – Works in any Online browser
The default Google Talk does not support invisible mode. All the other Gtalk clients have invisible mode option. If you’re looking for a Windows Client, then Google Talk Labs Edition is the best option. Google Talk Labs Edition supports Invisible Status, Tabs, Group Chat, notifications from Gmail, Orkut, Calendar.