Which citation manager works best with an iPad?

I'm on the HSL reference desk this afternoon, and received this interesting question. Which is the best? I left it in the hands of the client but thought I would share what I discovered and invite others to weigh in:

Mendeley:

• Has an app for iPad (and iPhone, iPod touch)


• The app is pretty awesome, syncs automatically with the web version of Mendeley


• Whatever PDFs you have synced will be stored in your app BUT you can't save new PDFs to the app, it must be saved to the desktop version of Mendeley


• Can access SFX links through the "web version" of the record

Refworks:

• Has a mobile version of the site, which is nice for smart phones BUT for iPad you are better off using the full version, this renders nicely on the iPad


• Don't get sfx links with mobile version (at least I couldn't see them)


• I said that this citation manager was best supported by staff and by vendor

Endnote:

• Has a mobile version of site