I know this my sound a bit strange But i have the novetal merlin HSDPA card since friday. When it is connected and has no activity for a long time and then i use it again the speeds are shockingly slow. eg it takes forever to load my google homepage. Then after a few minuts the connection seems to come to life and it runs much faster. i can see it on my ping rates to the server www.space.com when it is "waking up" i get pings between 1000-1500ms then after it gets going i get rates of about 575ms and less. Is this a firmware problem, it is connected to a desktop through vodacom's PCI adapter.
