先来看看官网主页上是怎么说的：
The GRE revised General Test is coming August 2011. There are a lot of exciting changes in the works. New question types. New test-taker friendly format. And many more benefits.
Plus, you can save 50% if you test between August – September 2011. See the special score reporting schedule to see if this option is right for you.
通过简短的几句话我们能够了解新G是从2011年8月开始实行，并且报名8-9月（August 1, 2011 – September 30, 2011）考试的考生报名费将减少50%。
对于是否报名8-9月的新G我想每个人都有不同的看法，报名费固然少了，但是8-9月份毕竟是ETS试运行时期，新题型考完的效果怎么样，我们都无法估计，不过我个人觉得花一半的价钱买一次经验还是值得的，新G主要考查的是考生的应用能力和逻辑判断能力，不再是词汇量的考查了，看了新题题型（下面我会给出）我们不难发现，考查实际应用的内容多了些，当然这并不意味着“红宝”可以丢弃，只是对于那些很难的僻义词ETS不会再考查了

接下来继续看官网信息：

1. The GRE® General Test is Changing. Find Out What You Need to Know — and Why It's Good News for You.
For millions of students like you, a graduate or business degree can give you a big advantage in your future career. An important step toward achieving that goal — and the path to thousands of graduate and business programs all over the world — is to take the GRE® General Test.
Now we're ** that step even better for you. Starting August 1, 2011, the GRE® revised General Test will replace the current GRE General Test, giving you the advantage of a better test experience — and new types of questions that help show your readiness for graduate-level work.

2. Here's What You Can Expect from the GRE revised General Test
A new test-taker friendly design for the computer-based test that lets you edit or change your answers, skip questions and more, all within a section — giving you the freedom to use more of your own test-taking strategies. Another new feature: an on-screen calculator.
New types of questions in the Verbal Reasoning and Quantitative Reasoning sections, many featuring real-life scenarios that reflect the kind of thinking you'll do in today's demanding graduate and business school programs.
Special savings of 50% when you take the GRE revised General Test between August 1 and September 30, 2011. The 50% discount means big savings for you — and another big advantage to taking the GRE revised General Test.
Important score reporting information you need to know: If you take the GRE revised General Test during our special discount period of August – September 2011, your scores will be sent by mid-November. However, if you need your scores before November 2011, take the current test before August 2011.
Something else to keep in mind when you receive your scores: The GRE revised General Test features a new score scale that can make it easier for schools to compare your GRE scores with the scores of other candidates.
*For those taking the paper-based GRE revised General Test, calculators will be provided at the test center for use during the test.

3. Choosing Between the Current Test and the Revised Test
To help you decide which of the two tests to take, start by selecting which schools you're most interested in, then find out when they need your scores. Different schools have different admissions deadlines, so knowing when your prospective schools need your scores is an important part of ** the decision between the GRE General Test and the GRE revised General Test.
If you need scores before November 2011, start planning now. You will need to take the current test. You will want to register early to ensure you get a seat for your preferred date and location. If you take the current test in either a split-test administration or paper-based test location early planning is especially important.
If you don't need scores until after November 2011, taking the GRE revised General Test is a smart move. With these new changes in place, the revised test will give you a better test experience — and offer an even better way to show schools that you're ready for graduate-level work.

下面对形式做一个总结：
1. 笔考和机考结合的形式将被每月进行一到两次的机考取代；
2. 新题型可以更好反映商学院和研究生院所需技能；
3. 新的答题格式包括基于电脑的量化答案输入题；
4. 减少对于单词意涵背记的孤立考察，更加突出阅读能力；
5. 每个部分内部增设Preview和Review修改功能(不可跨越section修改答案)；
6. 新的“Mark与Review”功能方便考生快速回到先前跳过的题目；
7. 允许考生修改编辑已经做出的答案；
8. 数学部分增加在线计算器功能。