This is strange. There's still nothing about this on their web site. It's very suspicious when a Bitcoin exchange claims problems on the deposit side and stops processing withdrawals . Nobody trusts a Bitcoin exchange in trouble, with good reason given the history. On the other hand, it's 6:30 AM in London, where Bitstamp is, and their staff is probably not in yet. Bitstamp is still processing trades; they haven't sh…
On top of that, Bitcoin, after being stable around $315-$320 or so for weeks, suddenly dropped to a low of $255 in the last 48 hours. Right now, it's around $270. Something is going on.
Stable for weeks is probably over stating it, looking at the chart it looks like almost exactly two weeks it was in that range, so technically it was weeks, but I wouldn't be quick to draw a direct connection between that recent price decline and this unfolding event, as the dominant pattern for the past 6 months or so has been a week or two of relative stability followed by a rapid decline.
[speculation] If this is a gox-esque scenario, there could be a connection with the recent price decline in that the price decline is what is causing them trouble and not a technical issue.