Once again. No, hspa+ is a lie. Just like calling wimax 4g is a lie. Hspa+ can do downloads to 21mbps. Evdo, can do downloads to 14mbps. Wimax can do downloads of 100mbps. Not a single one of them can really do that in real life. Period.
Let me try to explain. (Trying to keep it simple. Do not want to get all geeky. Simple understandable language.)
Hspa+ has to offer 5mhz bandwidth to reach 7.1mbps. The total amount of bandwidth offered to hspa+, using everything is 15mhz. So if you want 7.1mbps, you can only have it if there is less then 16 (using modulation) people using your tower. If more then 16 people are using your tower, you need to drop to 2.5mhz, which will 48 people at 3.7mbps. Now if you have more then 48 people per tower you need to drop to the 1.2mhz which will support up to 96 people at 1.3mbps.
In real life, this would not really happen, you would get about 100 people connecting. Roughly about 4% will get the 7.1mbps, 23% will get 3.1mbps, and the rest will get less then 1.3 mbps. What does this mean? When you start to add people and people start to use the data, the traffic slows greatly. You get really good speed, when you are on the freeway with no one else, but once you start to add cars, the free ways slows down.
Now, take all that and add this mess. If you are walking with a hspa+ connection your speed is cut in half. If you are more then 1/2 the distance from the tower range your speed is cut in half. If you are traveling quicker then 25 mph, your speed is cut into 1/4.
So even if you do start to get a 7.1 mbps download, by walking you get cut down to 3.5mbps, then crossing the 1/2 mark you get cut down by 1.3mbps. And if you get into a car, you are cut down to 750kbps.
For about 75% of the average users, hspa+ will be no quicker then hspa. For 25% of the users, hspa+ will be twice as quick as 3g, 4% of the time.
Wimax will not play the same games as hspa+, it is alot more efficient and a lot more bandwidth.