Panic later. It actually can be cured... it's just that the success rate is not high. Or rather, there isn't enough data to know what the success rate would be in modern hospitals.
One fear is that if the epidemic is allowed to continue in Africa, the virus could have time to evolve to a form that might be less lethal but that could persist in human populations for longer periods of time. (Previous rural outbreaks have been somewhat self-limiting. Everybody dies fast, outbreak over.) There is some speculation that this strain might already be different, because victims don't seem to bleed as much before they die.
Although it's something completely different, it's interesting to read the paper in the October 3 issue of Science about the evolutionary history of HIV. Although SIV seems to have made the jump from monkeys to humans several times, it wasn't until it became endemic in Kinshasa, in the 1920's, that it evolved into a pandemic form.
(Probably just coincidence that ebola virus was also first detected in Kinshasa. Probably.)