iPad: not yet
iPads are not in the first waves. Kiosk, point-of-sale and tablet-first apps are the use cases we hear about; the request count decides when they come.
If your user needs one
Reserve by name so the demand is counted; it is free, anonymous and creates no obligation: GET https://www.usedevice.cloud/agents/use/ipad?task=. Or do nothing: this page is information, not a request.
Today
Real tablets today: BrowserStack, Sauce Labs and Kobiton list iPads and Galaxy Tabs; Mobile MCP drives a tablet you own. All options.