If you own a Symbian S60 devices and waiting for the SlingPlayer Mobile, SlingMedia has started a private beta test on the upcoming SlingPlayer Mobile for Symbian S60.

You can now take part into the beta test by submitting the application form here . US residents get the chances first, but the company might give you the opportunity even if you don't live in US.

Requirements

Slingbox
 - Any model

Symbian phone:
- Nokia N75
- Nokia N95 (used on a US network)
- Nokia E65 (used on a US network)
- Other models won't be supported at this time, but feel free to apply if your Symbian phone is 3G or Wi-fi; high-demand of other models will help guide us to support future releases.

Carrier:
- Pretty much just AT&T and T-Mobile for now,
  as the S60 phones require a GSM network
- Unlimited data plan is a MUST

Source [darlamack]