After today's announcement of the HTC EVO 4G, formerly HTC Supersonic, everyone seemed really excited - what's not to like? The phone is absolutely amazing, more powerful than ever before. Many questions were finally answered but one remained:

Will Sprint Charge Extra For Using 4G On The EVO?

I just got off the phone with a Sprint CSR, Kathy, who assured me that Sprint will NOT charge extra for using 4G on your new EVO 4G.

The phone will switch to the 4G mode automatically in areas where it is available and fall back on 3G otherwise.

This seals the deal for many of you afraid that the new device would bring unwanted new charges. You can breathe easy now.

No 5GB Monthly Limit On 4G

Furthermore, the Sprint 4G page admits that there are 5GB monthly limits on data transferred using its 3G networks. However, the 4G doesn't seem to have this limitation. In fact, 4G is promised to be truly unlimited:

Satisfy your need for speed with our superfast 4G connection in select cities. Outside of the 4G area, we’ve still got you covered with our nationwide 3G network. Check out 4G coverage and speeds.

This plan includes

• Unlimited 4G usage. Download mammoth files, watch streaming videos and video conferencing without the lag. More coverage locations coming soon!
• Peak download speeds of over 10 Mbps and average download speeds of 3-6 Mbps
• 3G coverage nationwide: 5GB/mo. in total or 300 MB/mo. while off-network roaming. Additional monthly usage over 5GB costs 5¢/MB. You may not use more than 300 MB/mo. while off-network roaming. You can check your usage online anytime. Log into www.sprint.com/mysprint and click on usage details.