iPhone 3G is its ability to pinpoint your location via GPS

One of the most powerful functions on the new Apple (AAPL) iPhone 3G is its ability to pinpoint your location via GPS. Yet, at least in New York City, it's been one of the phone's most disappointing features.

In our experience, routinely -- especially indoors -- the iPhone's Google Maps app and other location-hungry apps seem like they can't get a precise GPS location, and seem to use the iPhone's 1.0 location tools -- cellphone tower and wi-fi triangulation -- to narrow my location down to a neighborhood or a few-block radius. Real GPS, where I can follow my precise location as I walk, has only worked when I'm outdoors and away from tall buildings. This, I'm told, is a problem specific to New York City -- lots of tall, old buildings with lots of concrete and metal, and lousy sight lines to cell signals.

For most practical purposes, a less-precise location is fine -- Google (GOOG) will still be able to show me the closest Starbucks (SBUX) store or post office. But the iPhone's location services have also failed completely several times, searching for my location for more than a minute and never finding anything. Very frustrating.

The good news: Location-hungry app developers (and Apple) are working on it. One major iPhone developer tells us his company is working on an enhancement to their app that's more reliant on network-based location -- and less on GPS. And Apple's latest iPhone firmware/developer kit, version 2.1, reportedly includes a lot of GPS improvements, too.











Apple has finally posted an update regarding the extended MobileMe email outage that has affected approximately 1% of users. Their updated support document reports that they have restored web-access to affected MobileMe accounts. This will allow affected users to see emails that they have received since July 18th, the day the outage started.
As Apple details, users still do not have access to emails prior to that date and are unable to access their email from their desktop email clients. This functionality will presumably be restored over time. This temporary web-access is meant to allow users to access their recent mail that has been unavailable.

Apple warns that users should not make changes to their MobileMe password, email aliases, or storage allocation while this temporary solution is in place. Doing so could result in technical errors.

Apple also admits that while the majority of email messages will be fully restored, approximately 10% of messages received between 5:00 a.m. PDT on July 16th and 10:20 a.m. PDT on July 18th have been lost. Additional details can be found in their tech note.

The writer explains that he or she will be updating again this weekend to report on progress.

Nanotechnoloy : a small stuff but really big

24hoursnews

Nanotechnology the new boost of scince is attracting ths whole science market. In some recent comments it found that nano isn't nano
You may never have heard of it, but chances are some of the products you use make use of nanotechnology. These products include particles so small, they might be able to pass through the wall of a cell.

Nanomaterials are measured in nanometres — or millionths of a millimetre. A human hair is 100,000 times thicker than a particle measuring one nanometre.

Proponents hail nanotechnologies as the next industrial revolution, with the potential to make cancer therapy more effective, consumer products more durable, solar cells more efficient and revolutionize the natural gas industry. Those developments could be years away.

Nanoscale chemical substances, or nanomaterials, behave differently from their full-sized counterparts. Nano-gold, for instance, shows dramatic changes in properties and colour with only slight changes in size. Titanium dioxide nanoparticles in sunscreen are transparent to visible light, but absorb UV light. The same chemical in its conventional form is thick, white and opaque, and is used in products such as house paint and adhesives.

Titanium dioxide accounts for 70 per cent of the worldwide production of pigments. It has also been classified by the International Agency for Research on Cancer (IARC) as a possible human carcinogen.

The question many are asking is whether or not the novel properties of nanomaterials give rise to new exposures and effects, and would that mean that already-approved chemicals should be reassessed for their potential impact as nanomaterials on human health and the environment?