Ask HN: What features of iGoogle do you use/will you miss?

If you were to launch a startup to take advantage of all the soon to be homeless igooglers, which widgets would be essentials? I have a work in progress CMSlike system I could repurpose to being an igoogle alternative (in fact I probably will for personal use), so I would love to hear how you use igoogle. Personally, I would need out of the box - a google search box, and topbar links to all the google services - email reader widget - rss reader widget - iframe widget (for embedding chunks of dashboards etc. from other apps)