Meanwhile, whether you're a new iPhone 4 owner or not, you're welcome on the Talkcast! We'll be live at 10 pm ET, taking your calls and questions as best we can.
To participate on TalkShoe, you can use the browser-only client, the embedded Facebook app, or the classic TalkShoe Pro Java client; however, for maximum fun, you should call in. For the web UI, just click the "TalkShoe Web" button on our profile page at 10 pm Sunday. To call in on regular phone or VoIP lines (take advantage of your free cellphone weekend minutes if you like): dial (724) 444-7444 and enter our talkcast ID, 45077 -- during the call, you can request to talk by keying in *8.
If you've got a headset or microphone handy on your Mac, you can connect via the free X-Lite SIP client; basic instructions are here. Of course, the full TalkShoe client includes its own 'Shoephone' VoIP tool as well. For MP3 streaming on iPhone or iPad, you can try this link once the show starts (may or may not work).